Adolescent socialization and use of licit and illicit substances: Impact on adult health

Abstract

This study examined the impact of adolescent substance use on young adult health. Longitudinal data from 825 participants were assessed when the participants were junior high school and high school students (1969-1973) and again in 1981. Latent variable models were used to determine what effect adolescent drug use had on later health. General substance use, which included tobacco, alcohol, stimulants, sedatives, and other hard drugs, had a small effect on adult health problems associated with substance use, and also predicted accidents related to substance use. In addition, the specific use of tobacco and cannabis in adolescence predicted later respiratory problems, while cigarette smoking during adolescence also predicted decreased physical hardiness. Lower adolescent socialization predicted post high school accidents (automobile and other) serious enough to require medical attention, and predicted increased psychosomatic and seizure symptoms, as well as general psychiatric distress. Implications of these results for the successful prevention or intervention of drug use are discussed. In addition to these results, gender differences are also examined.     

Adolescent marijuana use: screening and ethics

Adolescent marijuana use is an issue of concern to the entire community. The emergence of technology that can identify marijuana use poses questions relating to public health issues such as justification and extension of screening. This article discusses the moral issues relating to surveillance of adolescent marijuana use and postulates a justification for clinical screening.     

Correlates of illicit drug use among university students in Africa and the Caribbean

The goal of this study was to estimate the prevalence and correlates of illicit drug use (IDU) among university students from eight countries in Africa and three countries in the Caribbean. In a cross-sectional survey, data were collected from 7 017 undergraduate university students (mean age 21.1, SD = 2.7, age range of 18–30 years) from 11 countries. Overall, 17.2% and 3.5% reported infrequent (1–9 times) and frequent (10 or more times) IDU in the past 12 months. In multivariate logistic regression models, residing on or off campus on their own, living in an upper middle or high income country, current tobacco use, binge drinking, and having been in a physical fight in the past 12 months were associated with both frequent and infrequent IDU. In addition, higher intrinsic religiosity and older age was found to be protective from infrequent IDU and associated with never using illicit drugs. The influences on IDU identified may be utilised for the design and implementation of social intervention programmes to curtail IDU by college students.     

Individual differences as predictors of illicit drug use among Turkish college students

Although the prevalence of drug use in the young adult population in Turkey is still far below the figures reported for most European Union countries and the United States, there seems to be a noteworthy increase in drug use, especially among high school and college students. The purpose of the present study was to examine the extent of drug use among college students in Turkey and to identify some of the individual-difference variables associated with drug use. Participants were 781 college students. A survey package including (a) measures of sensation seeking-risk taking, self-esteem, affectivity level, global mental health, overall life satisfaction, and the rate and nature of substance use and (b) demographic questions was administered to the participants during regularly held class meetings. A logistic regression analysis revealed that sensation seeking-risk taking, parental education level, smoking, and frequency of alcohol use predicted illicit drug experience. Implications of the findings and limitations of the study are discussed using the context of the study as a framework.     

Adolescent marijuana use: the role of the physician

Adolescent marijuana use is an issue of concern to the community at large. Physicians now have the technology to identify marijuana use and thus are in a unique position to deal with the issue. This article addresses the moral issues related to screening and surveillance of adolescent marijuana use and postulates the justification for active physician intervention.     

Adolescent gambling and drug use

In this study, 4516 adolescents (aged 11–16 years) completed a questionnaire examining the relationship between underage National Lottery gambling, underage scratchcard gambling, cigarette smoking, drinking alcohol and drug use. It was found that these behaviours were closely linked. Adolescent gamblers reported that they were significantly more likely to drink alcohol (particularly ‘alcopops’), smoke tobacco and take drugs compared to non-gamblers. © 1998 John Wiley & Sons, Ltd.     

Reasoning deficits among illicit drug users are associated with aspects of cannabis use

Deficits in deductive reasoning have been observed among ecstasy/polydrug users. The present study seeks to investigate dose-related effects of specific drugs and whether these vary with the cognitive demands of the task. One hundred and five participants (mean age 21.33, SD 3.14; 77 females, 28 males) attempted to generate solutions for eight one-model syllogisms and one syllogism for which there was no valid conclusion. All of the one-model syllogisms generated at least one valid conclusion and six generated two valid conclusions. In these six cases, one of the conclusions was classified as common and the other as non-common. The number of valid common inferences was negatively associated with the aspects of short-term cannabis use and with measures of IQ. The outcomes observed were more than simple post-intoxication effects since cannabis use in the 10 days immediately before testing was unrelated to reasoning performance. Following adjustment for multiple comparisons, the number of non-common valid inferences was not significantly associated with any of the drug-use measures. Recent cannabis use appears to impair the processes associated with generating valid common inferences while not affecting the production of non-common inferences. It is possible, therefore, that the two types of inference may recruit different executive resources, which may differ in their susceptibility to cannabis-related effects.     

The relationship of alcohol, tobacco, marijuana, and other illegal drug use to delinquency among Mexican-American, black, and white adolescent males

This study examined the relationship between drug use and delinquent behavior among 348 high school males (154 whites, 172 Mexican-Americans, and 22 blacks) and 89 adjudicated delinquent males confined to a maximum-security facility for violent and repeat offenders (37 whites, 25 Mexican-Americans, and 27 blacks). Data were collected in the spring of 1986 using self-administered questionnaires. Analyses were performed separately for each racial subgroup. Simple correlations revealed that self-reported alcohol, tobacco, marijuana, and other illegal drug use were all significantly related to both minor and violent delinquency for all three racial groups. Multiple regression analysis revealed that the use of these substances accounted for 40% to 47% of the variance in minor delinquency and for 59% of the variance in violent delinquency among blacks, 53% of the variance in violent delinquency among Mexican-Americans, and 34% of the variance in violent delinquency among whites. The best predictors of violent delinquency were the frequent use of illegal drugs other than marijuana and use of tobacco, in that order, among Mexican-Americans; the frequent use of other illegal drugs, marijuana, and tobacco, in that order, for whites; and the frequent use of illegal drugs, followed by marijuana, for blacks.     

Recent research on the relationship between illicit drug use and crime

This article reviews research on the relationship between illicit drug use and crime conducted since 1980. Significant advances are noted in studies of the crime of known drug abusers and in studies of the drug use of individuals processed by the criminal justice system. Major conclusions supported by the results of studies of the criminal activity of narcotic abusers are that both a higher prevalence and higher rates of crime are associated with more frequent use of heroin and/or cocaine, although addicts vary with regard to the type, amount, and severity of crime they commit. Rates of lifetime and recent illicit drug use, particularly the use of cocaine, among prisoners, parolees, probationers, and arrestees are high compared to the general population. Issues discussed include the etiology of drug abuse, the effects of treatment and criminal justice interventions on drug use and crime, and drug-related violence.     

Psychological factors and adolescent illicit drug use: ethnicity and sex differences

Of four psychological factors examined in a representative sample of New York State secondary school students, only two, depressive mood and normlessness, show a positive relationship with the use of illicit drugs, especially drugs other than marihuana. The association of depressive mood and normlessness with illegal multiple drug use varies by ethnicity and sex, being consistently stronger among girls and among whites. In addition, depressive mood is negatively related to multiple drug use for black and Puerto Rican boys. These findings suggest that psychological factors play a different role in adolescent drug involvement within various social and cultural groups.     

Patterns of marijuana use and physical health indicators among Canadian youth

We examine how trajectories of marijuana use in Canadian youth (ages 15 to 28) are related to physical health indicators in adolescence and young adulthood. Youth were initially recruited in 2003 (N = 662; 48% male; ages 12 to 18) and followed for six waves. Five trajectories of marijuana use (Abstainers-29%, Occasional users-27%, Decreasers-14%, Increasers-20% and Chronic users-11%) were identified. Chronic users reported more physical symptoms, poorer physical self-concept, less physical activity, poorer eating practices, less sleep, and higher number of sexual partners during adolescence than other classes. Decreasers also reported poorer physical self-concept and poorer eating practices than abstainers. Other trajectory classes showed few significant health problems. Chronic users also reported more acute health problems (i.e. serious injuries, early sexual debut, higher number of sexual partners, greater likelihood of having a STI) in young adulthood than all other classes contributing to costs of healthcare. Youth who engage in early, frequent and continued use of marijuana from adolescence to young adulthood are at-risk of physical health problems in adolescence and young adulthood.     

Attempted suicide, self-harm, and violent victimization among regular illicit drug users

Relationships among attempted suicide, nonsuicidal self-harm, and physical assault were examined in 400 regular users of heroin and/or psychostimulants. Twenty-eight percent had episodes of nonsuicidal self-harm, 32% had attempted suicide, and 95% had been violently assaulted. The number of suicide attempts and nonsuicidal self-harm incidents were correlated (ρ = 0.44). There were also significant correlations between the number of assaults and nonsuicidal self-harm incidents (ρ = 0.17), and suicide attempts (ρ = 0.27). The mean age onset for non-suicidal self-harm (18.9 yrs) was significantly younger than that of initial suicide (22.3 yrs). The age at initial physical assault (16.0yrs) was significantly younger than that of nonsuicidal self-harm and initial suicide attempt. Screening for all forms of violence appears warranted when determining suicide risk for this population.     

Adolescent drug use and psychological health. A longitudinal inquiry

The relation between psychological characteristics and drug use was investigated in subjects studied longitudinally, from preschool through age 18. Adolescents who had engaged in some drug experimentation (primarily with marijuana) were the best-adjusted in the sample. Adolescents who used drugs frequently were maladjusted, showing a distinct personality syndrome marked by interpersonal alienation, poor impulse control, and manifest emotional distress. Adolescents who, by age 18, had never experimented with any drug were relatively anxious, emotionally constricted, and lacking in social skills. Psychological differences between frequent drug users, experimenters, and abstainers could be traced to the earliest years of childhood and related to the quality of parenting received. The findings indicate that (a) problem drug use is a symptom, not a cause, of personal and social maladjustment, and (b) the meaning of drug use can be understood only in the context of an individual's personality structure and developmental history. It is suggested that current efforts at drug prevention are misguided to the extent that they focus on symptoms, rather than on the psychological syndrome underlying drug abuse.     

Drug testing,drug treatment,and marijuana use: a fairness perspective

The authors conducted a random statewide telephone survey of 1,484 individuals to study the relationship between marijuana use (in terms of participants' history of marijuana use) and reactions to drug testing and to study 2 hypothetical drug-treatment policies. Job safety sensitivity was related to perceived fairness of drug testing for the participant's job, and more recent marijuana use was associated with more negative reactions. Safety sensitivity was related to perceived fairness of drug treatment. Organizations with voluntary treatment were more attractive than ones with monitored treatment. Marijuana use interacted with drug treatment policy type in predicting reactions to drug treatment. Results suggest that organizations should consider job and employee characteristics when developing a drug treatment policy.     

Religiosity and adolescent marijuana use

Among adolescents, religiosity has been associated with lower rates of marijuana use, though few studies have examined its impact on the perceived risk of use. There is strong support that perceived risk of using marijuana is negatively correlated with the frequency of use. We examined the relationship among religiosity, perceived risk, and marijuana use from a national survey of adolescents that contained questions about lifetime, weekly, and past month substance use, social support, religious involvement and attitudes, and perceived riskiness of use. We tested a structural equation model of relationships among latent variables of religiosity and perceived risk, and an observed variable of total days of marijuana use in the past 12 months. Results indicated the model was a good fit to the data and described a mediating relationship of perceived risk of use between religiosity and marijuana use. Implications for leveraging religiosity in prevention of substance use are discussed.     

Undergraduate marijuana use and anger

The Anger Expression Scale and a questionnaire regarding marijuana usage were administered to 497 undergraduate college students enrolled at a rural university in the midwestern United States. Four levels of marijuana use were defined by the questionnaire: nonuser, occasional user, frequent user, and daily user. No significant main effect was found on the Anger-In or Total Anger Expression scales, but differences among the four levels of use were noted on the Anger-Out scale. The trend analysis showed a significant linear trend for the Anger-Out and Total Anger Expression scales. Implications of these findings are discussed.     

Adult social behavioral effects of heavy adolescent marijuana use among African Americans

The authors examined the effects of heavy adolescent marijuana use on employment, marriage, and family formation and tested both dropping out of high school and adult marijuana use as potential mediators of these associations among a community sample of African Americans followed longitudinally from age 6 to age 32-33. They used propensity score matching to reduce selection bias when estimating the effects of heavy adolescent marijuana use. Logistic regression results on the sample matched on sex, and early demographic and behavioral variables showed that adolescent marijuana use has adult social behavioral consequences: Use of marijuana 20 times or more during adolescence was associated with being unemployed and unmarried in young adulthood and having children outside of marriage for both males and females. Dropping out of high school and more frequent adult marijuana use seem to be important parts of the pathway from adolescent marijuana use to negative life outcomes.