Research Article Creative Commons, CC-BY
Public Health Impact of Substance Use on Adolescent: A Snapshot of Yenagoa in Bayelsa State. Nigeria
*Corresponding author: Raimi Morufu Olalekan, Department of Community Medicine, Environmental Health Unit, Faculty of Clinical Sciences, Niger Delta University, Nigeria.
Received: May 14, 2019; Published: July 29, 2019
The Nigerian polarization of its society with an estimated population ranging from 198 to 210 million people, growing at the rate of 3.2% per annum, into a large rural sector and a small urban component could provide a basis for the rapid increase in the prevalence of substance use among adolescents, which has aroused public health concern and have been declared a national public health and social emergency with a threat multiplier. One in every five people in the world is an adolescent, regrettably four out of every 10 teenager’s you meet on the street now abuse drugs and if unchecked, seven out of every 10 young persons on your street would become drug addicts by the year 2030 particularly in the major cities. Yet, many adolescents lose their lives during this adolescent period. However, the World Health Organization reported that an estimated 1.7 million adolescents die yearly mostly through accidents, suicide, violence, pregnancy related complications, substance abuse and high-risk behaviors or illnesses that are either preventable or treatable.
Adolescents suffer from a preponderance of health risk and behavioral problems. Admittedly, substance abuse is particularly problematic for this population and causes significant harm to their health and well-being. However, the teenage years are so volatile that parents should not worry about making much progress. Consequently, substance use affects developing brain by increasing the risk of addiction, mood disorders, lowered impulse control, increased risk for adverse consequences, confusion, cognitive impairment, and medical morbidity, which can contribute to hospitalizations and health care costs, as well as loss of independence and has been known to increase risky sexual activity, emphysema, lung cancer, heart disease, oral cancers, laryngeal carcinoma, and a number of other health issues in older age, decreased academic grades, and making poor decisions, that can be detrimental to the adolescents using or to others crime, militancy and violence behaviors etc. This article addresses the current trends and research related to the public health impact of substance use on adolescent. It is therefore vital for parent and societies to seize the opportunity of applying behavior modification, mind transformation and remodification therapy to young adults. Also, citizen advocacy should be intensified and encouraged on the health impact of substance use. It is also imperative that all stakeholders engage in concerted efforts to target both parents and adolescents in substance use control strategies.
Keywords: Substance Use; Adolescents; Public Health Emergency; Threat Multiplier; Militancy; Risky sexual activity; Yenagoa
Yenagoa is the traditional home of the Ijaw people, the Ijaws form the majority of the town. Nigeria’s fourth largest ethnic group after the Hausa, Yoruba and Igbo. English is the official language, but Epie/Atissa language, one of the Ijaw languages, is the major local language spoken in Yenagoa. Yenagoa is a great place to live, work, and raise a family and is one of the best small cities for business and careers. In fact, Yenagoa is one of the best city environments in which to raise children. However, this is fast eroding away due to the rise of cultism, crimes such as spontaneous shootings triggered by drug related poor mental health which has become a regular occurrence in our society such as you see it happen in places like Tombia, Swali, Agudama, Opolo and Azikoro etc. (Figure 1) and militancy behavior [1-3]. Yenagoa estimated population is 1,992,000 (2010 projected population) with a land mass of 11,007Km2. It has been a multiple whammy for adolescent in Nigeria, ever since the recent national survey about drug abuse which has been confirmed to be massive, meaning the rate at which young persons and adults are using psychoactive drug substance popularly referred to as “getting high” is more than the global average rate at 15% Nigeria’s and 5.6% global. Of note, four (4) out of every ten (10) teenagers you meet on the street now abuse drugs and if this goes unchecked, seven (7) out of every ten (10) young persons on your street would become drug addicts by the year 2030 particularly in the major cities.
Previously, the prevalence tragedy of drug abuse was among adults and adolescent, but most alarming and worrisome now is the rate at which under-age teens are embracing drugs freely and unchecked. Worst still, young people are generating their mixtures, using conventional substances with unusual elements to create their own formula for severe drug intake which are often called “science students” for these practices . This means that drug intake has graduated from the use of sedatives like cocaine, heroin and cannabis that we used to know to potent mixture of several drugs to attain fatal overdose. For example, a cocktail of drugs like codeine, tramadol, cannabis with juice or soft drink is called “gutter water”. More crude is the smoking of lizard part, manure (dung), sniffing of petrol, glue, urine and sewage as inhalant. This is gradually eating deep into the fabric of our society like cancer. Actually, drug abuse is now part of a modern society, but very worrisome is the alarming rate at which youngsters are embracing hard substance .
Data from around the world suggests that substance use often starts between the ages of 14 and 15 [5,6]. There are numerous reasons given for this fact. However, the predominant reason seems to be that adolescence is a period of transition, in which individuals seem to be more impulsive, reckless and nonconforming than during other developmental stages of their lives . Many adolescents engage in substance use activities, which they do perceive as risky, but are somehow acceptable within their peer groups. As a result, risk behaviors (including substance abuse) during the adolescent years are of major concern in Nigeria today. In Africa, the Nigerian experience is quite alarming. According to the National Drug Law Enforcement Agency , the use and abuse of drugs by adolescents have become one of the most disturbing health-related phenomena in Nigeria and other parts of the world. In Nigeria, most people use such drugs as coffee, colanut, and cigarettes for staying awake; or take alcohol and tobacco as a way of relaxation; or take painkillers like aspirin in reducing body pains. These are seen as licit drugs. However, the use or abuse of drugs such as cannabis or marijuana, cocaine, heroin and meth are seen as illicit in Nigeria. The widespread availability of these illicit drugs and frequency in its usage engenders its abuse [1-3].
The lack of standardized values in relation to fat in the general population and the heterogeneity of the clinical manifestations of lipodystrophy make the diagnosis even more difficult, but some methods that have been used are effective and recommended, such as Anthropometry, bio impedance, DEXA, computed tomography, magnetic resonance imaging and ultrasonography. Anthropometry and Impedanciometry are not able to measure regional fat, but the use of Ultrasound becomes important and promising, in the face of its simplicity of not being invasive, and low cost. Epidemiologically scientific research suggests that the percentage of individuals with lipodystrophy is extremely variable among HIV patients, using antiretroviral therapy (ART) for at least one year [8-10].
According to the NDLEA 2014 report, drug use and abuse has been on the increase in Nigeria, despite efforts by anti-drug agencies in combating the menace. Statistics of arrest by geopolitical zones in Nigeria shows that North West, South West and North Central took the lead, while the South-South came fourth and has over 38% of the females arrested for drug offences (Table 1), even though Katsina, Kano and Bauchi States constitute the highest in terms of the statistics of arrest nationwide. In Nigeria, there has been an upsurge in the use and abuse of psychoactive substances. This upsurge has been characterized by an increase in the mental disorders, criminal acts such as spontaneous shootings triggered by drug related poor mental health and cult activities (as currently experience in yenagoa) in both the higher institutions of learning and also in secondary schools [1,3,9]. The high rate of road traffic accidents, increased violence and criminal behaviour are also partly attributed to alcohol and drug abuse . Also, there is scanty data on patterns of drug abuse in specific groups in the community.
Table 1: Arrests by Geopolitical Zones in Nigeria.
Source: Adapted from NDLEA 2014 Annual report, p. 30.
Note: North West, South West and North Central took the lead, but over 38% of the females arrested came from the South-South.
Due to increasing urbanization of the country there is a tendency of changing patterns in illicit drug use therefore the need to constantly update information on the use of drugs among Nigerian adolescents. Linked to the above is a sharp increase in the cases of drug trafficking and abuse in the country and the most affected and vulnerable group has been identified as the youths between the ages of 16 and 45 years . Recently, the rate at which young boys and girls are being introduced to dangerous narcotics calls for serious public concern. Now, young boys and girls display proudly their love for dangerous drugs and even get endorsements from some of our indigenous musicians thereby promoting this dangerous trend [1-3]. Even though the inflow of opioid is not limited to Nigeria alone, our rate has surpassed “normal” percentage. Last year, two major high-profile raids led to seizure of half a billion tablets of tramadol, the local pharmaceutical companies are also riddled with high level of corruption related to boosting of illicit supply of codeine-based cough syrups to these drug users. Often times, a teenager will drink complete bottle of cough syrup at once to get “high” .
Metabolic alterations are associated with increased risk of cardiovascular events. Hyperinsulinemia associated with insulin resistance and a recognized risk factor in HIV-infected patients and may contribute to the increased risk of acute myocardial infarction in patients receiving ARV. Thus, HIV-positive patients, with a significantly higher prevalence of high levels of fasting glycemia and triglycerides and low levels of HDL cholesterol, have an increased risk of atherosclerosis, coronary disease and diabetes mellitus, which is evident as an expressive pathology associated with lipodystrophic syndrome in patients living with HIV/Aids [1,3-6, 11-13]
Large-scale epidemiological studies have shown that about two thirds of late adolescents have admitted to using tobacco, over 80% have reported using alcohol, and half have admitted to experimenting with marijuana . Overall, most adolescents admitted experimenting with an illicit substance rather than admitting substance-specific preference [12-13] noted that adolescent experimentation with alcohol, marijuana, cigarettes, and other illicit substances increased through 18 years of age and then decreased as individuals got older. Illicit substance use by adolescents between 16 to 18 years of age has been commonly associated with other unhealthy and unproductive behavior . Illicit substance use affects many regardless of race, religion, culture, or socio-economic status .
Substance use is a problem in society among adolescents. Adolescent substance use has declined from the mid-1990s, but other illicit substances, such as amphetamines and hallucinogens, has remained the same . The constant interaction with peers exacerbates the easy availability of substances to the adolescents because there are more doors open to where they are able to obtain substances. In 2009, the Substance Abuse and Mental Health Services Administration (2010) conducted the National Survey on Drug Use and Health (NSDUH) to analyze the prevalence of substance use among adolescents age 12 to 18. They found out that there was an increase in the number of adolescents using substances since 2002 . There were 21.8 million estimated adolescents age 12 to 18 years who used illicit drugs in prior months before taking the survey, increasing from 20.1 million adolescent users in 2008 [16,17]. The survey’s findings suggested that adolescents’ negative attitudes about substances were beginning to change; for example, the negative attitude towards marijuana declined from 9% and 7% between 2008 and 2009 [16,17]. The results of the National Survey on Drug Use and Health suggested that adolescents were being misinformed about substances, which had changed the adolescents’ perception of the risk in marijuana use [16,17].
Research on preventing adolescent substance use has shown that adolescents rarely communicated with their parents about the issue [15,18] suggested adolescents that were taught about the risks of substance use by their parents were 45% less likely to experiment with any type of substance. Risk factors of adolescent substance use have indicated which adolescents were more likely than others to use substances . There are a number of risk factors that can contribute to an adolescent experimenting with a substance, such as lack of family cohesion, poor parent-adolescent relationship, and substance using friends, which are all risk factors associated with adolescent substance use . Substance use in adolescents may not be specifically associated with just one risk factor, but with several risk factors that may lead to the adolescent experimenting with a substance .
Adolescents’ Substance Use
Even though adolescents know the dangerous outcomes of using substances, there are still those who experiment, and sometimes, continue to use different substances. On average 45% of adults who initiated alcohol use as an adolescent became dependent on alcohol [22,23]. In 2007, an average of 39% of eighth graders had used alcohol, 31% had used some form of tobacco, and 14% had used marijuana [22,24]. There is a wide array of consequences to substance use, such as becoming violent, increased high-risk sexual activity, decreased academic grades, and making poor decisions, that can be detrimental to the adolescents using or to others [14,25]. The use of substances can also decrease their judgment and it can consequently lead to detrimental health outcomes [14,18]. Adolescents’ substance use can range from any substance including but not limited to cigarettes, alcohol, marijuana, and other illicit substances. When adolescents begin to use one substance there is a likelihood that they will progress to other substances [13,26,27]. When adolescents go from one substance to another it is referred to as a gateway substance. In describing the gateway model,  noted that “substance use progresses from no substance use to beer or wine, then to cigarettes or hard liquor, to marijuana, and eventually to other illicit substances” (pg. 78). For example, adolescents are likely to use cigarettes and then progress on to marijuana and alcohol . According to this theory, adolescents will experiment with one substance before they begin to progress to the use of other substances [13,26].
Marijuana is a popular illicit substance used by millions of people every day, constituting 75% of the illicit substances used in the United States [26,28-31]. Additionally, the earlier one is given the opportunity to experiment with the substance, the likelihood of long-term use increases [29,32-36]. Additionally, the earlier an adolescent begins to use a substance, the frequency of the use increases and the likelihood of progressing to heavier use tends to increase [35,37-40]. The use of marijuana is often the first use of an illicit substance and can become the gateway to the use of other substances, such as heroin, crack, and cocaine [28,29,32,34,41,42].
Marijuana is an addictive substance that can produce adverse mental, emotional, and behavioral changes, such as lung harm, impaired short-term memory, and impaired judgment [22,29,43,44]. There have been links between marijuana use and severe depression, behavioral problems at home and school, increased aggression, and declining academic achievement [41,45-47]. Another association with marijuana use is sensation seeking or the engagement in risky behavior [2,46]. The adolescent’s association with peers who also use marijuana increases the chance that he or she will engage in sensation seeking [2,46,48]. Marijuana is easily accessible for adolescents. Studies have found that 20% of eighth graders, 69% of 10th graders, and 81% of 12th graders reported they did not have a problem getting the substance [29,39,49]. The easy accessibility of marijuana has contributed to the high numbers of adolescents who are using.
In 2002, there were an estimated 2.6 million Americans using marijuana and around two thirds of those were adolescents [29,50]. Additionally, the use of marijuana among adolescents has begun to increase since 2006 following a decline for several years prior , and it was found in 2006 that 15.7% of eighth graders had tried marijuana at least once, 14.2% of 10th graders were frequent users, and 42.3% of 12th graders had experimented with marijuana once and an estimated 18% were frequent users . From the 2009 Monitoring the Future Survey,  reported that 12% of eighth graders, 27 % of 10th graders, and one third of 12th graders were using marijuana in 2009. According to The NSDUH Report , as the age of the adolescents increased, marijuana use increased, and the perception of risk decreased, meaning that those adolescents who perceived the risk of marijuana use were less likely to use marijuana versus those who did not perceive great risk  conducted a study to determine if there was a relationship between adolescent marijuana use and its continuation into young adulthood  found that those adolescents who used marijuana were 1.83 times more likely to progress to other illicit substance use.
The relationship between adolescent marijuana use and continued young adult illicit substance use was mediated by the environment the adolescents were associated with; in other words, marijuana use could be the gateway substance to other illicit substance use but only through social mechanisms. Also, siblings who used marijuana were two times more likely of continuing on to other illicit substance use in young adulthood. This can be based on the family’s background, which can be a determining factor in the progression towards other illicit substance use . Qualitative studies have also shown that older persons who use marijuana often report using it for relaxation or social recreation [53,54], but it is also frequently seen as a safer alternative to prescription medications for chronic pain . Little is known about the longterm consequences of marijuana use in adolescent, but short-term use in all age groups has been correlated with impairment in shortterm memory, coordination, and driving, as well as increased risks of injury, paranoia, and psychosis. The chemical composition of marijuana is complex, and its effects on brain function and other physiological processes in younger and older adults have not been sufficiently studied.
Both adolescents and older adults with coexisting chronic medical conditions who use marijuana may be at risk for cognitive changes, falls, and interactions with prescription medications. Given that more states are making marijuana legal for medicinal or recreational use, marijuana use among adolescent is likely to increase. Research is needed to understand the effects of longterm cannabis use on adolescent. The NESARC showed that the prevalence of marijuana use among adolescent increased between 2002–2003 and 2012–2013 , Older marijuana users are likely to have started use in their teen years and may have long-term or frequent use. In addition, the proportion of admissions for alcohol use alone decreased, whereas admissions for use of illicit drugs and for use of drugs in combination with alcohol nearly doubled [1,3].
Adolescence is a critical period when most people will try tobacco products and tobacco use has been a leading cause of preventable death in the United States, yet many adolescents initiate the use [2,50,56-59]. Adolescents who begin use of tobacco early have a greater risk of being affected with numerous health problems such as emphysema, lung cancer, heart disease, oral cancers, laryngeal carcinoma, and a number of other health issues in older age [26,60]. There are an estimated 438,000 people who die from tobacco-related illnesses yearly [61,60]. Additionally, there are an estimated 3,000 adolescents who experiment with smoking every day, and approximately one third of them will become regular smokers . It has also been shown that when adolescents begin
 noted that 44% of adolescents experimented with cigarettes by 12th grade and 20% of them were current cigarette smokers. There were 22% of eighth graders and 46% of 12th graders who admitted having tried smoking [51,62]. By the time adolescents entered into the 12th grade 1 out of every 4, of those adolescents would have tried smoking [51,62,63] noted that frequent smokers had higher use of other substances, lower school performance, and increased chances of being a frequent smoker. Between 2002 and 2008 there was a decline in smoking from 15.2 % to 11.4 % according to The NSDUH Report . For example, there were only about 2.7 % of eighth graders and 11.2% of 12th graders who reported that they were daily users, down from 10.4 % of eighth graders in 1996 and 24.6 % of 12th graders in 1997 . There has been growing concern for smokeless tobacco and other tobacco use, such as cigar use. Researchers claimed that smokeless tobacco use was the gateway to smoking and would lead to an increase in adolescent smoking [21,64].
Other researchers argued that smokeless tobacco use was a behavior associated with smoking and did not cause one to smoke . Among 10th graders surveyed, their use of smokeless tobacco increased by 6.5 % (NIDA, 2009). The NSDUH Report indicated that in 2008 cigar use was down by 3.8 % when compared to 2002 to 2004, but it was equal to the rates found in 2005 to 2007 . Smokeless and pipe tobacco remained consistent between 2002 and 2008 with 2.2 % of smokeless tobacco use and 0.7 % of pipe tobacco use . Researchers have been trying to find ways to reduce the number of adolescent smokers and to identify factors for why adolescents begin to smoke. When an adolescent begins to smoke, it is either because he or she has a parent who smokes or peers who smoke [62,65-67]. In a study conducted by Gilman SE , the authors examined parental smoking history to determine if there was a relationship with smoking initiation of adolescents. The 564 participants of the study, ages 12 to 17, were enrolled into the New England Family Study along with one of their parents between 2001 and 2004. The parents were asked about their history of smoking, age they began smoking, how many times they attempted to quit, and periods when they did not smoke at all.
The adolescents were asked about their exposure to their parents’ smoking, age when they tried smoking, and about the reactions to the smoking whether positive or negative. Gilman SE  found that when the parents smoked there was a high risk that the adolescent would begin to smoke. If both parents smoked and the duration of the adolescent exposure to the smoking increased, the chances that they adolescent would smoke increased even more, therefore showing a dose-response relationship between the parents’ smoking habits and the adolescent’s smoking habits. Adolescents of parents who ceased smoking were less likely to smoke just as adolescents whose parents never smoked. Pozzato G  examined the correlation between whom the adolescent interacted with and the effects on subsequent adolescent tobacco use. When adolescents associated with peers who used tobacco, it was a predictor of tobacco use with the group. Pozzato G  only relied on those adolescents from the 9th to the 11th grades who had smoking information on their responses (N = 6696). Pozzato G  found that if an adolescent had friends who smoked and if the number of friends increased who smoked, there was a higher prediction that the adolescent would begin to smoke. If the adolescent associated with a group of peers who smoked and his or her group was linked with another group who smoked, it would consequently lead to increased risk of the adolescent smoking more. Associating with a group of peers who smoke increases the chances of the adolescent becoming dependent on nicotine and developing health problems later in life.
Idowu A  found that students smoke and use drugs at the instance of friends/peers, parents and television/radio advertisements. Oladele [,70,] showed that adolescents were very susceptible to the influence of their peers.  asserted that socially, a drug abuser is always pre-occupied with how to obtain drug of choice and crave for the substance. Kobiowu SV  study revealed that the academic pursuits of those undergraduates who engages in drug misuse is not unduly jeopardized and that the abusers do not socialize extraordinarily, contrary to seemingly popular expectation.
Alcohol is regarded as the most widely abused substance and early alcohol use is the leading factor in heavy and abusive use of alcohol, and it has been the third leading cause of death within the United States . Although alcohol consumption generally decreases with advancing age , demographic trends show an increase in alcohol-use among adolescents in the United States including Nigeria [2,74,75], adolescent tends to consume alcohol at a level above the limit recommended by the National Institute on Alcohol Abuse and Alcoholism (NIAAA). When coexisting medical conditions such as hypertension and diabetes are factored in, 53.3% of drinkers have potentially harmful levels of consumption. The 2013 National Survey on Drug Use and Health showed heavy drinking (defined as drinking five or more drinks on the same occasion on each of 5 or more days in the past 30 days) and binge drinking (defined as drinking five or more drinks on the same occasion on at least 1 day in the past 30 days) among 14.1% of persons  Studies has shown that men are at higher risk than women for harmful consumption, but prevalence rates for drinking are increasing faster among women than among men .
In the United States alcohol is one of the most accepted and abused substances [3,26] and adolescents use has increased between the ages of 16 and 20 [77,78]. Of all substances that adolescents may choose to use, alcohol has been the substance of choice for most adolescents [38,58,79]. For example,  found that in 2008 there was an average of 10.1 million under-aged drinkers in the United States. Of those drinkers, 17.4% were binge drinkers and 5.5% were heavy drinkers. The Monitoring the Future study found that 15% of eighth graders, 30% of 10th graders, and 44% of 12th graders in 2009 reported having used alcohol recently . Without proper education of the risks of alcohol, the percentage of adolescents using alcohol may increase.
If an adolescent begins to use alcohol, there are increased chances of more problems within and outside of his or her home life, such as family problems, stressful events, and behavioral problems [3,58,81-83]. Additionally, using alcohol in an abusive manner increases the chance of vehicular accidents, contracting sexually transmitted diseases from high risk sexual activity, and an increase use and abuse of illegal substances [32,58,82,83] conducted a study to find the prevalence of the alcohol types that were used among adolescent in eighth and 10th graders. Patrick ME  found that 1 out 10 eighth graders and 1 out of 5 10th graders had participated in binge drinking within the last 2 weeks prior to the study. Alcohol use within the previous year was reported by 24.1 % of the eighth graders and 35.9% of the 10th graders in the study. Heavy alcohol use remained high among those adolescents in the 10th grade. If the adolescent used another substance there was a high correlation of alcohol use and if there were peers who participated in exces
Research has shown that one in every 13 individuals throughout the world abuse alcohol or are in fact alcoholics [19,84] reported that drinking alcohol is a significant problem for 10-20% of the adolescent population. Furthermore, in the age range of 13-18 years in the United States there are approximately three million problem drinkers . In a study done by SAMHSA, it was found that approximately 7-8% of young adolescents (12-13 years); 20- 21% of adolescents (13-15 years); and 33% of older adolescents (16-18 years) reported the use of alcohol within the preceding month. This suggests that initiation into alcohol use starts at a very young age and it progresses with age. About 10% of women and 20% of men have met the diagnostic criteria for alcohol abuse sometime during their lives and males tend to binge drink more than females .
However, international research shows that although males tend to drink more than females, the gap between male and female alcohol consumption is narrowing . In terms of culture, past research suggests that Whites drink more than other cultural groups, and that in terms of alcohol abuse there are no statistically significant differences by culture . In older adults as compared with their younger counterparts, impairment and an increase in the risk of falls occur at lower levels of alcohol consumption, but there is no evidence that liver metabolism of alcohol is significantly changed with aging [62,87]. The long-term health complications of alcohol use in older people are the same as those in younger people. However, alcohol use has been found to increase the risk of hospitalization among adults . Those with alcohol-use and multiple chronic health conditions are more likely to report depressive symptoms than are adults of a similar age who do not have alcohol-use disorder .
The increased risk of a harmful interaction between alcohol and prescribed medications is of clinical importance, and adolescent often lack knowledge of the risks of such interactions [90,91]. Even close family members may miss problematic consumption by an elderly relative whose drinking is occurring at home. Coexisting medical conditions, including cognitive impairment, can obscure signs of harmful use, which may be mistaken for anxiety, depression, or complications of current medical treatments. Results from the 2003 National Survey on Drug Use and Health conducted by SAMHSA in the USA serve as an effective way to highlight the epidemiology of alcohol use as their findings are consistent with the literature put forward. The table points to gender, cultural and age group differences with regard to alcohol use (Table 2). The results of this study confirm that alcohol use tends to increase with age. Males were more likely than females to report current use of alcohol, binge drinking and heavy drinking however, within the 12-17year age group the gap between the two was very narrow. Cultural differences were also evident as Asian and Black youths had the smallest rates of alcohol use. White youths had the greatest rate of use.
In Nigeria, research efforts into the problem of drug and alcohol abuse started in the late 1950s. Since then, shifts in the pattern and types of drugs abused in the country have been reported and increasing female involvement and multiple drug use pattern have also been noticed . Factors found to contribute to this changing trend include urbanization, industrialization and increased exposure to western lifestyle, peer pressure, deficient family support and increasing advertisement of such in the mass media, among others [52,92,93]. It is obvious, through scholarly studies, that research efforts into alcohol and related issues in Nigeria have increased in recent time.
Other Illicit Substance Use
Illicit drugs are most widely used by individuals aged 18-26 and use is lowest among individuals 50 years and older. Males are twice as likely to use illicit drugs than their female counterparts. Substance use does not only include the use of alcohol, tobacco, and marijuana. There are numerous other illicit substances that adolescents may try. Alcohol, tobacco, and marijuana are considered the gateway substances to the use of cocaine, crack, heroin, etc. . With early initiated use of marijuana before the age of 15 years, there is a greater chance of other illicit substance use and dependency . Adolescents who begin to use substances like heroin and cocaine believe they are at a minimal risk of the consequences of using these substances . According to Graydanus DE  by the completion of high school an average of 50% of adolescents will have tried other illicit substances. In 2009, adolescents’ use of hallucinogens and LSD has decreased from 5.9% to 4.7% and from 2.7% to 1.9% . As of 2009 there has been an increase in illicit substances being used, such as Ecstasy and methamphetamine [16,95]. It was noted that there was an increase of 60% of adolescents who began to use methamphetamine and an estimated 760,000 adolescents who began to use ecstasy [16,95].
Oshikoya KA  examined the perception of drug abuse amongst Nigerian undergraduates living off-campus, using the Lagos State University, Ojo, as a case study, the study found a chronic use of drugs by students, but little addiction or abuse. The most commonly drugs of abuse include marijuana, alcohol and coffee. The study also revealed the poor attitudes of the undergraduates to drug addicts even after rehabilitation, and thus concluded that the awareness, knowledge, practices and attitudes of Nigerian undergraduates towards drug abuse is very poor. Finally, the study recommended considerably more research in order to develop effective prevention strategy that combines school-based interventions with those affecting the family, social institutions and the larger community. Students, especially those in secondary school tend to see the drug user as one who is tough, bold and strong. Many youngsters have been known to use drugs at the instance of peers, elders or siblings. Students who usually feel inadequate have been known to use drugs to achieve social acceptance. Esen AJA  stated that Nigerian secondary school adolescents under the influence of Indian hemp shed all inhibitions and produce behaviour that is inconsistent with school discipline.
He went further to observe that the increasing incidence of drug abuse among secondary school students is a contributory factor in the ugly confrontation between school administration and students. The problem of drug abuse knows no boundaries as social class, as it impedes the development of any society as it is a threat to life, health, dignity and prosperity of all individuals [1,3,64,70,97,98], in their research on the effect of drug abuse on educational performance of some adolescent drug abusers in Ibadan, found that the misuse of marijuana had reached an epidemic level in the present Nigeria society, and that drug abuse could lead to reduce academic achievement or even halt one’s entire academic process. Some studies [1,3,99,100] dwelled extensively on reasons students use drugs include success in examination, social acceptance and initiation of peers. Olatunde A  states that Nigerian adolescents take drugs such as amphetamines and pro-plus as aid for success in examination and postulates that those who take drugs as aid for studies toward examinations are those with poor academic records, a history of instability and family/social problems, while others, he commended; use rugs to increase their self-confidence, heighten pleasure, cope with feelings of depression and inadequacy and to facilitate communication .
Studies by [1,37,102-104] exhibit a plethora of purposes for which students use drug. The list includes curiosity, boldness, friends-do-it, enjoyment of social gathering, academic pressure, sound sleep, sexual-prowess, and performance in sports. Drug abuse is a very serious problem among school adolescents, and which has slowly made the average Nigerian student to be maimed, sentenced to a life of delinquency, insanity, street walking and premature death. Atoyebi OA  studied pattern of substance abuse among senior secondary school students in a southwestern Nigerian city, using 450 students. This cross-sectional study reveals that the most commonly abused substances were analgesics, cannabis, tobacco, alcohol and sedatives; and that majority of respondents (87.4%) had positive attitude towards substance abuse and would do everything to ensure they discourage a friend from using such substances.
Furthermore, SAMHSA (2001) found that 4% of the young adolescents (12-13 years), 11% of the age group 14-15 years and 16% of the older adolescents (16-18 years) reported the use of marijuana (cannabis), cocaine, crack, inhalants, hallucinogens or heroin in the preceding month (SAMHSA, 2001). American statistics show that marijuana remains the most common illicit drug used by adolescents with the level of other illicit substances significantly lower . There has been continuous increase of prescription substances and cough syrup use among adolescents . For example, 1 in 10 12th graders admitted to nonmedical use of Vicodin, and 1 in 20 admitted non-medical use of Oxycontin . There are an estimated 5.3 million adolescents aged 12 years and older who abuse prescription pain relievers daily [16,95]. The adolescents obtain these substances from family members or friends because there is easy access to the prescriptions that are not being unused and or secured in medicine cabinets within adolescents’ home [16,95,108]. The Monitoring the Future Study found that 58.2% of adolescents who admitted to using a prescription painkiller obtained the medications from a relative or friend for free [37,108].
Substance abuse in adolescents can be associated with other high-risk behaviours such as drinking and driving, participation in devious peer groups, interpersonal violence, and destruction of private property . Substance use is also related to decreased inhibitions and thus an increased probability of engaging in high risk sexual behaviours, placing the adolescent at risk for both unwanted pregnancies and sexually transmitted diseases including HIV . Substance abuse can also contribute to an increased risk for suicide ideation and behaviour and it increases the probability for psychiatric disorders, including conduct, mood and anxiety disorders. Furthermore, according to SACENDU reports, adolescent substance abuse has been associated with academic difficulties, declining grades, absenteeism, truancy and school dropout . Thus, although substance abuse alone is related to some serious behavioural problems, the effects associated with it are also of a serious and concerning nature. Another important finding is that certain substances have been shown to predate entry into other substance abuse and as such, most substance abusers do not limit themselves to one particular substance but typically use two or more substances .
Substance Use among adolescents in Yenagoa
Studies by Abdulraheem A FO & Funmilayo AA [1,3] shows that the most frequently used substance among adolescents in Yenagoa Local Government is alcohol, cigarettes are in the second place, marijuana in the third and cocaine (as the only drug with significant frequency of consumption) in the fourth place (Figure 1). According to the study results, 33.2% of students have consumed alcohol at least once in their life. The research findings show that alcohol is the most commonly used substance among adolescents in Yenagoa Local Government and this figure is in line with international research. This is consistent with recent international and local statistics that revealed that alcohol is still regarded as the most popular used substance [1,3,84]. In this study, 33.2% of the sample reportedly drank alcohol within the past 30 days and a further 14% reportedly binged (drinked) within the past 30 days period. In a recent SAMHSA study, approximately 25% of adolescents reportedly used alcohol within a 30 days period and thus the results are extremely consistent.
Other drug use was reported at (26.8%) cigarette, (24.2%) marijuana and (13.8%) cocaine which is fairly consistent with SAMHSA findings in 2001 which reported that 10% of adolescents reportedly used marijuana, cocaine, crack, inhalants, hallucinogens or heroin. Past, research however, suggests that cannabis would be the illicit substance most likely to be used by high school attending adolescents. In this regard, drug use percentage would probably be largely accounted for by cannabis . This is concerning because while the so called “Gateway Theory” – the idea that experimenting with “soft” drugs like cannabis will inevitably lead to heroin addiction and squalid death – has been discredited, there is evidence to show that adolescents who start drinking, smoking and using cannabis at an earlier age are more likely to take “hard” drugs than those who start later . As the literature highlights, adolescents involved with any form of substance use are more likely to be involved in other risky behaviours has currently being experienced in Yenagoa and its environs; they are more likely to have academic problems; and they are more likely to initiate use in other substances. As a result, the 33.2% of adolescents who reported used alcohol and the 26.8% who use cigarettes, (24.2%) marijuana and (13.8%) cocaine respectively, are a cause of huge concern. It was hypothesised that belonging to different race, groups, age and gender have an effect on one’s level of substance abuse.
The results of this study in terms of substance use patterns are consistent with the literature discussed in chapters two and three. The finding that 33.2%, 26.8%, 24.2% and 13.8% of the sample are drinking and using drugs respectively is one of grave concern in light of the fact that all of the respondents are 20 years or below and that drinking, and drug use are illegal for these age groups. What is also of concern is that although majority of the substance abusers use alcohol, it is known that alcohol use predates entry into many other forms of substance use . Furthermore, studies have found that among adolescents enrolled in substance abuse treatment programmes, 96% are polydrug users, and that 96% of the polydrug users also use alcohol . As such it should be realised that the 33.2% of alcohol abusing adolescents are possibly on the road to more dangerous and illicit drug use.
The Federal Ministry of Health has recommended no alcohol consumption below age 15 years . Health implications can be short term or long term and can involve both acute and chronic adverse effects. Health implications for alcohol use include liver disease, cardiovascular disease, cancer, violence, and road traffic accidents. Over a quarter of deaths of 16-24-year olds have been attributed to alcohol consumption . Comparatively, a study in Canada showed some similarities in the findings of this study in terms of the high prevalence of alcohol use. The top five substances used by youth according to the 2010 Canadian Alcohol and Drug Use Monitoring Survey (CADUMS) were alcohol (71.5%), marijuana (25.1%), hallucinogens (4.6%), ecstasy (3.8%) and cocaine (2.7%) (Health Canada. (2010). While another study in Lagos still showed a lower alcohol prevalence of 29.1% , in relation to this study, another one in Minna revealed even much lower prevalence of thirty-four respondents (17%) abusing alcohol and forty-five respondents (22.5%) cigarette . Also, in a study of 3,870 students from 20 school boards in Ontario, Canada on drug use, it was found that a total of 58.8% students use alcohol, 27.9% use cigarettes and 22.7% use cannabis. Although the proportions are higher compared with this present study, the order of common use agrees with the findings.
Having looked at the results of a number of surveys and compared with that of this study, it can be inferred that the common substances often abused by the youths are cigarettes, cocaine, marijuana and alcohol. The order of occurrence varies with respect to the community studied. The reasons for the lower frequency in cigarette smoking in this study could be attributable to the upsurge of public education and warnings from Ministry of Health “that smokers are liable to die young” about the effects of tobacco in recent years coupled with the involvement of the youths in the celebration of ‘No Tobacco Days’ nationwide, though infrequent. The level of use of alcohol is probably due to the social permissiveness in alcohol use. It is a drug with important social roles and is therefore acceptable. Consequently, there are few laws governing its usage and restriction within the population. Besides, brewing companies go at length to produce and advertise specific alcoholic beverages aimed at wooing the youth into alcohol use. No specific reason could be attributed to the very low frequency in cocaine use in this study. The result was surprising to investigators since there are heightened speculations that more youth are abusing cocaine. It is strongly felt that respondents probably were not convinced that divulging such information to the research team was safe (Figure 2).
Risk Factors of Adolescent Substance Use
Research has sought to determine if one risk factor outweighs other risk factors in determining why adolescents use substances. There are many factors that can influence the reasons adolescents use substances, such as family and peer relationships [1,3]. The relationships with family and peers can determine substance use for reasons like peer pressure, family problems, and lack of parental monitoring [1,3,114]. During younger adolescence parental influence is a strong determinant of substance use, whereas, in latter adolescence peer influence is greater [27,115-117]. The bonding within these two groups is the deciding factor in an adolescent’s use of a substance. Family and peer relationships are constantly working simultaneously in influencing the adolescent’s attitudes [2,118]. There are numerous reasons why an adolescent may begin to use a substance, for instance, trying to fit in with peers or seeing someone within their family using a substance . Time with peers may be frequent and held in higher accord by adolescents, making peer influence more powerful, but family influences also play and important factor in shaping the adolescent’s attitude towards substance use [27,118].
Peer Risk Factors
Peers are thought to have the greatest influence over other adolescents because they spend a majority of time with one another. Peers can influence the thoughts and actions of other adolescents who try to fit in. When there is a lack of cohesiveness within the family adolescents are more susceptible to peer influences [1,3,114,119]. During socialization, peers can either encourage or discourage substance use, and this is based on the selection of friends the adolescent has chosen to socialize with and also the norms of the group . When adolescents associate with those who engage in deviant acts, both the peer socialization and selection have a high impact on the adolescent’s choice to use a substance [1,2,3,117,120].
During adolescence there is a period of wanting more independence, increased autonomy, and more connection with their peers, thus increasing the chances of the adolescent engaging in substance use . A peer relationship is important to the development of social skills outside of the family matrix and teaches adolescents how to interact effectively with others [115-117]. Based on the parent-adolescent relationship this can determine the types of friends the adolescent will select to interact with. Brook JS  notes that positive parent influence and monitoring builds the foundation for adolescents to choose to affiliate themselves with non-substance using or substance using peers. When an adolescent begins to engage with peers who use a substance the individual is more likely to engage in substance use . If adolescents interact with peers who make the substances available, make the use acceptable, and encourages use, the likelihood of use typically increases . It has been shown that adolescent’s alcohol and cigarette use has been the result of strong peer influence and once peer influence becomes stronger than the family influence there is an increased chance for continual use [27,121]. Even though peer relationships may have a strong influence on adolescent substance use, family relationships can moderate the choices the adolescent will make [120,122] conducted a study examining peer influences on adolescent’s substance use.
The sample size in the study consisted of 1,040 adolescents in the sixth and seventh grade from eight schools in Kansas City, Missouri.  utilized the growth curve model (GCM) to analyze the relationship of adolescent substance use to peer use influences beginning in middle school and continuing through high school. It was paired with the Mid-Western Prevention Project (MPP) that based its study on the Integrative Transactional Theory (ITT) that suggests that peer influence on adolescent substance use is a combination of modelling and perceived norms  hypothesized that peer influences and substance use would grow in middle and high school but would be greater in high school; when peer influences grow it would predict the growth in substance use; and peer influences would affect the level of adolescent substance use  results found that as peer use and perceived norms increase, the more likely the adolescent would participate in substance use as well. For example, perceived peer use of cigarettes in middle school influenced the use of cigarettes in high school.
Familial Risk Factors
Family and adolescent relationships are important in determining what decisions adolescent will make regarding substance use. In family settings adolescents form their identity and receive nurturing and safety. It is also during adolescence that the family has to renegotiate boundaries to help in eliminating problems . The family interactional theory argues that the stronger the attachment is between parent and adolescent, the less likely the adolescent will be involved in substance use . There are many factors a family will encounter that play a role as to why an adolescent may choose to try substances. These may include: “family conflict and domestic violence; lack of family cohesion; social isolation of family; heightened sanctions regarding substance use; sibling rivalry; poor adolescent supervision and discipline practices; parental education level; unrealistic developmental expectations; and characteristics such as race and ethnicity” . Adolescents begin to want to branch away from their families and become their own person. The more adolescents begin to branch off from the rest of their family and adopt other views outside of their parents’ the more likely they are to use a substance .
The family is an important resource where adolescents can build their attitude about substance use because the family is the social group that adolescents will have the longest interaction over a period of time [27,121]. Family conflict is one determinant of adolescent substance use. Parental arguments or conflict with parents are factors for adolescent substance use . The more adolescents are involved in conflicts within the household, the more emotional distress is placed on the adolescent . When the family is classified as dysfunctional adolescents may engage in substance use to escape the problems in the home [21,27]. If there is conflict between adolescents and parents, the adolescent may begin to interact with peers who have acceptable views towards substance use . If the adolescent lives in a household where substance use is relevant, the likelihood of adolescent’s substance use increases [47,115,120].
Bahr S J  found that 82% of parents who use alcohol had adolescents who used alcohol  found that if both parents engaged in some form of substance use there was a greater chance of adolescent substance use. As such, when adolescents engage in the same acts as someone in the household, they are modelling the behavior of a family member [19,47]. Sibling substance use is also an important factor because this is one of the strongest interactions the adolescent will have of all relationships due the “length and intensity” of the relationship . Siblings learn different things from one another, therefore, if one sibling is using a substance the other sibling will be introduced and learn about the substance from them . This is true for younger siblings because they look up to and model the behaviors of their older siblings [121,124] conducted a study to examine the drinking habits of parents, siblings, and friends to determine if the drinking habits of those the adolescent associated with had an effect on the drinking habits of adolescents.
Results from the study showed that age, sex, and previous use of alcohol contributed to regular alcohol use later in life. Parental alcohol use had a small effect on adolescent use but was persistent with positive associations. Sibling, co-twin, and friend use had a significant effect on alcohol use, but the friends’ influence decreased over time. It is important to continue to examine the effects of family and friends on the behaviors of adolescents so that effective intervention strategies can be implements to mediated risk factors that can contribute to adolescent alcohol use. Admittedly, this case was worsened by the fact that our healthcare system is not adequately equipped to contain consequences of disorders emanating from drug abuse, leaving victims to degenerate into complete decadence and irreversible mental states. It is not surprising why the rate of depression and anxiety induced suicides is on the increase. As noted, this problem is not getting the attention it requires from both federal and state government, development partners  and our communities. In the past, it is a taboo to smoke marijuana popularly called “weed” in the public. But now, it is a trend and thing of pride among the adolescent.
Thus far, systemic consumption of drugs by adults makes them see nothing bad in adolescent drug abuse and the rate at which young criminals are paraded on the media i.e. television, radio, facebook, youtube etc, is alarming. Adolescent now have free access to dangerous weapons as much as they have to drugs, making the situation more dangerous. The era of “blue tongue”, “purple tongue” and “red tongue” are now prominent with our youths consuming drugs freely at will. When cultism meets drugs, the result is that most rubbery gangs now consist of age group below 24 years particularly in yenagoa and its environs couple with previous and predominant crisis in the country given our population and energy [1,3].
Conclusion and Recommendation
Substance use are growing public health problems particularly among the youth yet may be overlooked by health care providers. Since the dawn of the 21st century and 4th industrial revolution, several researchers have found that the use of substance use has become a threat multiplier, part of a modern society and a moderately customary part of late adolescent and young adult social life. However, substance use and/ or abuse in Yenagoa and its environs is no longer conjectural and exaggeration. The effect is real, complex and constantly changing in form and nature with serious adverse consequences. Generally, youths in rural areas especially in remote villages are vulnerable to misinformation and wrong company. Consequent to their curiosity, they fall into the hands of wrong people, drug addicts and people with low moral credibility. Therefore, all health care provider who care for adolescents and older adults must be alert for possible signs and symptoms of substance-use in their patients. Essentially, motivational interviewing should be emphasized upon, this is a structured, non-judgmental conversation in which the health care provider encourages the patient to examine his or her substance use and adopt a committed attitude toward changing their behavior.
Also, the Center for Substance Abuse Treatment recommends that screening for substance use including alcohol be part of the routine medical visit for all adolescents’ persons between the age of 15 years and above. In addition, adolescent may lack awareness that their use of substances is problematic and might not bring it to the attention of the health care provider. Even close family members may miss problematic consumption by an adolescent relative whose drinking is occurring at home. Coexisting medical conditions, including cognitive impairment, can obscure signs of harmful use, which may be mistaken for anxiety, depression, or complications of current medical treatments. Research is needed to develop targeted screening methods and to identify the best treatment models for substance-use in adolescents. Treatment plans must encompass care for adolescents’ patients with coexisting medical and psychiatric illnesses. New innovative models of care need to be created that allow for both coordination of services in integrated health care settings and treatment programs tailored for adolescents’ patients.
Similarly, the fact that drug use is related to crime, cultist and militancy behaviours especially in the Niger Delta Region of Nigeria, the importance of mental health during the adolescent period is critical [1,3]. The knowledge about substance use and its devastating consequences should be highlighted. Tackling the underage substance abuse problem is indeed extremely complex, but it seems education and creation of green jobs for adolescents may play a key role . Also, Nigeria may need to borrow a leaf from other countries with severe penalties against illicit drug peddling to check imminent catastrophe looming on the nation. This truth is bitter considering the consequences of the societal hazard as we are beginning to experience in yenagoa and its environs. Religious institutions should focus more on messages that can help revamp the society. Unfortunately, we have few organisations championing cause for prevention of drug abuse in the country, more is needed [125-132].
Moreover, prevention they say, is better and cheaper than cure. For those already addicted, there is need for various forms of restorative approach in the society. But the most potent solution is to break the chain. Drug addiction is preventable, and research has shown that preventive programmes that involve the family, schools, communities and the media, particularly the music industry are effective in reducing drug abuse [133-137]. It is necessary, therefore, to help adolescent and the general public to understand the risks of drug abuse and for teachers, parents and health care professionals to keep sending the message that drug addiction can be prevented if a person never abuse drugs. In addition, there is need for more severe laws both at the federal and state level to prevent drug abuse with tactical check on the inflow and free distribution of illicit drugs in our society.
Furthermore, adolescents should be helped to overcome their psychological problems so as to prevent entry into substance abuse. it seems that the Nigerian Government agencies particularly the National Drug Law Enforcement Agency (NDLEA), Niger Delta Development Commission (NDDC), Nigerian Content Development and Monitoring Board (NCDMB), Ministry of Niger Delta, Bayelsa State Ministry of Education and Bayelsa State Ministry of Health, Primary Health Care Board (i.e. Community and Family Health Department, adolescent’s health desk etc) still has much work to do in terms of substance abuse prevention within the adolescent period. Since findings indicate that substance abuse begins at age 12-13, prevention programmes need to be implemented at an even younger age so as to highlight the public health risks involved.
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