Biomedical subjects

J S Brook

Publications and source records attributed to J S Brook.

At least 19 recordsLinked to original sources

PubMed1999

The role of parents in protecting Colombian adolescents from delinquency and marijuana use.

OBJECTIVES: To identify general and differentiating risk and protective factors from domains of culture and ecology, peer, family, and personality, related to adolescent delinquency and marijuana use, and to study the protective role of the parent-child mutual attachment in offsetting cultural and ecological risk factors, leading to less delinquency and marijuana use. DESIGN: Cross-sectional analyses of interview data collected in Colombia. PARTICIPANTS: A total of 2837 Colombian adolescents, 12 to 17 years of age. SETTING: Adolescents were interviewed in their homes. MAIN MEASURES: Independent variables included measures from 4 domains: culture and ecology, peer, family, and personality. The dependent variables were delinquency and marijuana use. RESULTS: Several risk factors, such as tolerance of deviance and sensation seeking, were similarly related to both delinquency and marijuana use, suggesting that a common cause underlies the propensity to engage in different deviant behaviors. Some risk factors were more involved in delinquency and other risk factors were more highly related to the adolescent's marijuana use. Finally, when violence is endemic and illegal drugs are readily available, a close parent-child bond was capable of mitigating these risk factors, leading to less marijuana use and delinquency. CONCLUSIONS: The findings have implications for public health policy related to interventions in countries in which violence and drug use are prevalent. The results point to interventional procedures aimed at adolescents vulnerable to marijuana use and delinquency as well as efforts aimed at specific vulnerabilities in these areas. For example, reducing the risk factors and enhancing the protective factors for marijuana use and delinquency may result in less adolescent marijuana use and delinquency.

Adolescent↗

PubMed1999

The onset of marijuana use from preadolescence and early adolescence to young adulthood.

Although it is well documented that intrapersonal and interpersonal risk factors are related to the frequency of marijuana use, much less is known about the initiation of marijuana use. This paper reports on a longitudinal study of the personality, family, peer, and ecological predictors of marijuana onset. Survival analysis was applied to a sample of nonusers of illegal drugs, followed from age 9 years to the 20s. The major findings indicate that (a) youngsters who are unconventional are at a higher risk for marijuana initiation; (b) youngsters who associate with peers who use marijuana or who smoke tobacco themselves are at increased risk for marijuana initiation; (c) youngsters who identify with their parents are less likely to begin marijuana use; and (d) the predictors related to marijuana onset emerged during preadolescence, early adolescence, middle adolescence, late adolescence, and the 20s. Results are discussed within the framework of a family interactional perspective of development. Implications for prevention are discussed.

Adolescent↗

PubMed1999

A longitudinal investigation of social causation and social selection processes involved in the association between socioeconomic status and psychiatric disorders.

Social causation theory and social selection theory have been put forth to explain the finding that low socioeconomic status (SES) is associated with risk for psychiatric disorders. The predictions of both theories were investigated using data from a community-based longitudinal study. Psychosocial interviews were administered to 736 families from 2 counties in New York State in 1975, 1983, 1985-1986, and 1991-1993. Results indicated that (a) low family SES was associated with risk for offspring anxiety, depressive, disruptive, and personality disorders after offspring IQ and parental psychopathology were controlled, and (b) offspring disruptive and substance use disorders were associated with risk for poor educational attainment after offspring IQ and parental psychopathology were controlled. These findings indicate that social causation and social selection processes vary in importance among different categories of psychiatric disorders.

Adolescent↗

PubMed1999

Influence of child and adolescent psychiatric disorders on young adult personality disorder.

OBJECTIVE: This study examines associations between childhood psychopathology and young adult personality disorder in a random sample of 551 youths, who were 9 to 16 years old at first assessment. METHOD: Subjects were evaluated for DSM-III-R psychiatric disorders. Information was obtained prospectively from youths and their mothers at three points over 10 years. The predictive effects of prior axis I disorders and adolescent axis II personality disorder clusters A, B, and C on young adult personality disorder were examined in logistic regression analyses. RESULTS: The odds of young adult personality disorder increased given an adolescent personality disorder in the same cluster. Prior disruptive disorders, anxiety disorders, and major depression all significantly increased the odds of young adult personality disorder independent of an adolescent personality disorder. In addition, comorbidity of axis I and axis II disorders heightened the odds of young adult personality disorder relative to the odds of a disorder on a single axis. CONCLUSIONS: Assessment of personality pathology before late adolescence may be warranted. Childhood or adolescent axis I disorders may set in motion a chain of maladaptive behaviors and environmental responses that foster more persistent psychopathology over time. Identification and treatment of childhood disorder may help to reduce that risk.

Adolescent↗

PubMed1999

The risks for late adolescence of early adolescent marijuana use.

OBJECTIVES: The purpose of this study was to assess the relation of early adolescent marijuana use to late adolescent problem behaviors, drug-related attitudes, drug problems, and sibling and peer problem behavior. METHODS: African American (n = 627) and Puerto Rican (n = 555) youths completed questionnaires in their classrooms initially and were individually interviewed 5 years later. Logistic regression analysis estimated increases in the risk of behaviors or attitudes in late adolescence associated with more frequent marijuana use in early adolescence. RESULTS: Early adolescent marijuana use increased the risk in late adolescence of not graduating from high school; delinquency; having multiple sexual partners; not always using condoms; perceiving drugs as not harmful; having problems with cigarettes, alcohol, and marijuana; and having more friends who exhibit deviant behavior. These relations were maintained with controls for age, sex, ethnicity, and, when available, earlier psychosocial measures. CONCLUSIONS: Early adolescent marijuana use is related to later adolescent problems that limit the acquisition of skills necessary for employment and heighten the risks of contracting HIV and abusing legal and illegal substances. Hence, assessments of and treatments for adolescent marijuana use need to be incorporated in clinical practice.

Adolescent↗

PubMed1999

Transmission of risk factors across three generations.

The present study examined the association between the parent-grandmother relationship, the parenting of toddlers, and toddlers' anger. Parent-grandmother relations were assessed when the parents were adolescents. Patient-toddler relations were examined when the toddlers were two years of age. The sample consists of 185 2-yr-old toddlers, one of the parents of each toddler, and the corresponding grandmother of each toddler. The findings support our hypothesis that there would be an indirect effect of the grandmothers' personalities and child-rearing practices on their grandchildren through the influence of the grandmothers on the parents. The influence of both the grandmothers' and the parents' smoking behaviors on the toddlers' anger was mediated by their child-rearing practices. The significance of the findings from a multigenerational study are discussed with reference to incorporating them into prevention programs. The findings are consistent with the notion of the intergenerational transmission of risk factors--from grandparents to parents to toddlers.

Adolescent↗

PubMed1999

Consequences of adolescent marijuana use: incompatibility with the assumption of adult roles.

This longitudinal study is an examination of the relationship between marijuana use and the assumption of adult roles, as well as the relationship between assuming adult roles and the likelihood of later marijuana use. Data were collected at 5 points in time from childhood through early adulthood (late 20s) by means of a structured questionnaire. Participants' marijuana use and the assumption of adult roles, including employment, marriage, parenthood, and living arrangements, were measured, and the data were analyzed with logistic regression analyses. A history of marijuana use was associated with an increased risk of adopting more unconventional adult roles, such as postponement of marriage, having a child out of wedlock, and unemployment. These results suggest that frequent prior marijuana use may adversely affect one's ability to successfully assume conventional adult roles. Furthermore, controlling for earlier marijuana use, marriage during early adulthood significantly decreased the risk of later marijuana use.

Adolescent↗

PubMed1999

Coping among HIV negative and HIV positive female injection drug users.

The study examined the psychosocial determinants of coping ability in a cohort of 249 HIV positive and HIV negative female injection drug users (IDUs), using a cross-sectional retrospective design. Information collected using a structured questionnaire included data on psychosocial risk and protective factors in the personality, family, and peer domains, HIV status, and coping ability. Coping ability was associated with conventionality, greater control of emotions, less psychopathology, and family cohesion in both HIV positive and HIV negative subjects. The psychosocial factors affected coping in HIV positive and HIV negative IDUs via two different mediational models. The interactional findings supported the influence of risk/protective interactions in both groups. The findings demonstrate the impact of the interplay between personality factors and external support on coping ability in female IDUs.

Adaptation, Psychological↗

PubMed1999

Coping strategies of HIV-positive and HIV-negative female injection drug users: a longitudinal study.

This study longitudinally examined the psychosocial correlates of coping strategies among 165 HIV positive and 179 HIV negative female injection drug users (IDUs). Participants were interviewed twice using a structured questionnaire, with a 6-month interval between interviews. The questionnaire included psychosocial measures as well as measures of general coping and specific HIV-related coping. Data were analyzed using logistic regression analyses. The findings indicated that favorable factors in the psychosocial domains at Time 1 were significantly associated with an increased likelihood at Time 2 of the use of general coping and specific adaptive coping strategies, such as problem solving and seeking social support, and with a decreased likelihood at Time 2 of the use of maladaptive coping strategies, such as aggression and the use of illicit drugs. These findings highlight particular areas of psychosocial functioning that can be targeted by intervention programs to promote adaptive coping and minimize maladaptive coping among HIV positive and HIV negative female IDUs.

Adaptation, Psychological↗

PubMed1999

Older sibling correlates of younger sibling drug use in the context of parent-child relations.

The purpose of this study was to examine older brother correlates of younger brother drug use in the context of parental influences and younger brother personality. The sample consisted of 278 White male college students and their oldest brothers, who volunteered to answer self-administered questionnaires. Results indicated that 3 domains of influence each had an independent impact on younger brother drug use: (a) parent-younger brother relationships and parent drug use, (b) older brother-younger brother relationships and older brother drug use, and (c) younger brother personality. Modeling of nondrug use and a strong attachment relationship in the parent-younger brother and sibling dyads, as well as younger sibling traits of conventionality, had strong links to low younger brother drug use. Our findings highlight the importance of modeling and mutual parent-child attachment relationships as well as sibling relationships as they relate to the possible etiology of drug use.

Adult↗

PubMed1998

Similar and different precursors to drug use and delinquency among African Americans and Puerto Ricans.

Correlational and net regression techniques were used to examine the commonalities and differences in risks for later drug use and delinquency among African American and Puerto Rican adolescents. Eight-eight percent of the risks were significantly related to both problem behaviors. Within the personality, family, peer, ecology, and acculturation domains, many risks independently contributed to the prediction of each problem. Only three risks had a significantly stronger relationship to one of the problem behaviors than to the other. Finding so many common predictors supports a general dimension of problem behavior and highlights the psychosocial risks for drug use and delinquency. The commonalities suggest that interventions targeting these adolescent risks might reduce both problem behaviors.

Acculturation↗

PubMed1998

Developmental variations in factors related to initial and increased levels of adolescent drug involvement.

The impact of maternal and adolescent factors on initial and increased levels of drug use by adolescents was examined in two groups of adolescents: 210 younger adolescents (ages 12-14 at initial assessment) and 199 older adolescents (ages 15-18). The adolescents and their mothers were interviewed at 2 points in time, 3 years apart. The results indicated that adolescent unconventionality is a crucial determinant for both initial and increased levels of drug use for both age groups, but intrapsychic distress is more important for the younger adolescent's initial use. Lack of maternal attachment and poor control techniques were associated with initial levels of drug use for both groups. However, the mother-child relationship and models of the mother's unconventionality had a greater impact on the older than on the younger group's increased involvement. Interactive results suggest that adolescents from both age groups who are well adjusted can offset the potential risks of maternal models of drug use.

Adolescent↗

PubMed1998

Longitudinal study of co-occurring psychiatric disorders and substance use.

OBJECTIVE: To examine temporal priority in the relationship between psychiatric disorders and drug use. METHOD: Psychiatric assessments and drug use were completed at three different points in time, spanning 9 years. Structured interviews were administered to a cohort of youths and their mothers. Subjects were selected on the basis of their residence in either of two counties in upstate New York. The sample was predominantly white male and female youths, aged 1 through 10 years upon initial collection of data. Psychiatric diagnoses were assessed by a supplemented version of the Diagnostic Interview Schedule for Children Version 1, using computer algorithms designed to match DSM-III-R criteria to combine information from mothers and youths. Substance use information was obtained in the interviews. RESULTS: A significant relationship was found to exist between earlier adolescent drug use and later depressive and disruptive disorders in young adulthood, controlling for earlier psychiatric disorders. Earlier psychiatric disorders did not predict changes in young adult drug use. CONCLUSIONS: Implications for policy, prevention, and treatment include (1) more medical attention needs to be given to the use of legal and illegal drugs; and (2) a decrease in drug use may result in a decrease in the incidence of later psychiatric disorders.

Adolescent↗

PubMed1998

Drug use among African Americans: ethnic identity as a protective factor.

This study examined the multiple components of ethnic identity, the place of this ethnic identity set in the mediational model of the path to drug use predicted by our family interactional framework, and the protective role of each component of ethnic identity. The participants were 259 male and 368 female African Americans in late adolescence. They responded to a structured questionnaire in individual interviews. We found that few of the specific components of ethnic identity were significantly related as main effects to drug use. Most of the effect of ethnic identity was mediated by the family set of variables. Each of the components of ethnic identity offset risks or enhanced protective factors from the ecology, family, personality, and peer domains, thereby lessening drug use. This pattern highlights the importance of incorporating ethnic identity into drug prevention programs which serve African-American youth.

Adolescent↗

PubMed1998

Psychosocial risk and protective factors for condom use among female injection drug users.

The authors examined the influences of domains of psychosocial risk and protective factors on male-partner condom use in a cobort of 209 female HIV-positive (HIV+) and HIV-negative (HIV-) injection drug users (IDUs) by use of a cross-sectional, retrospective design. Information collected from a structured questionnaire included data on psychosocial risk and protective factors in the personality, family, and peer domains; HIV status; and condom use. Among HIV+ IDUs, personality risk factors (e.g., unconventionality), family (e.g., low maternal identification), and peer factors were related to less male-partner condom use. Resources and condom availability were associated with greater male condom use with both HIV+ and HIV- IDUs. The psychosocial domains affected male condom use with both HIV+ and HIV- female IDU patients via two different mediational models. The findings suggest the need to use specific psychosocial interventions for risky sexual behavior among HIV+ and HIV- female IDUs.

Adolescent↗

PubMed1998

Pathways to marijuana use among adolescents: cultural/ecological, family, peer, and personality influences.

OBJECTIVE: To examine the linkages, cultural/ecological factors, and major psychosocial risk factors as they relate to drug use in a sample from Colombia, South America. METHOD: The participants were 1.687 adolescents living in mixed urban-rural communities in Colombia, South America. An individual interview was administered to youths in their homes by Colombian interviewers. The scales used were based on item intercorrelations grouped into the following risk categories: (1) adolescent personality, (2) family traits, (3) peer factors, and (4) cultural/ecological variables. RESULTS: Pearson correlations were computed for each variable and the frequency of marijuana use. Results show that each of the domains was related to adolescent marijuana use, with some notable gender differences. As regards the interrelation of domains, a mediational model was operative. CONCLUSIONS: Findings support a family interactional theory. The domains of family, personality, and peer factors had a direct effect on the adolescents' marijuana use. Implications for prevention are also addressed.

Adolescent↗

PubMed1998

A three-generation study: intergenerational continuities and discontinuities and their impact on the toddler's anger.

One hundred fifteen 2-year-old toddlers, one of the parents of each toddler, and the corresponding grandmother of each toddler were studied to determine the influence of the grandmother and the parent on the toddler's behavior. Findings indicated that the grandmother's parenting skills have an effect on the grandchild's anger via two pathways. More specifically, the grandmother's child-rearing techniques are mediated by the parent's personality traits, which, in turn, are associated with the parent's child-rearing practices and, ultimately, the grandchild's anger. The second pathway through which the grandmother's child-rearing is related to the grandchild's behavior involves the parent's imitation of the grandmother's parenting skills, which, in turn, are correlated with the toddler's behavior.

Anger↗

PubMed1998

Behavior patterns of young children and their offspring: a two-generation study.

Data from a random cohort of residents in a 2-county area were used to determine the stability in 2 major dimensions of childhood behavior between 2 generations. The 1st generation was assessed at mean age 7, and their offspring were assessed at age 2 years. Measures were used in latent-variable structural equation models to test the hypotheses. Strong stability in these behavior patterns in the 1st generation was shown between early childhood and a reassessment 8 years later. There was a significant stability between generations in the inhibited behavior pattern but not in the difficult pattern. This relationship was stronger when parents had been assessed at an age closer to that of their toddler offspring. Findings are consistent for mother-offspring, father-offspring, and daughter and son subsamples.

Adult↗