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Background: We have few data on incidence of psychiatric disorders among adolescents. This study examined first incidence of disorders among adolescents and baseline factors which increased or decreased risk of new onset cases a year later. Methods: Data were analyzed from Teen Health 2000 (TH2K), a probability sample of 4,175 youths 11-17 and their parents assessed at baseline and 3,134 of these youth-parent dyads followed up a year later. Disorders examined were anxiety, mood, attention deficit hyperactivity disorder (ADHD), disruptive, and substance abuse/dependence disorders in the past year. Risk and protective factors were assessed from three domains: status factors, personal and social resources, and stressors. Logistic regression models were used to estimate odds of incident disorders for each risk and protective factor. Results: Incidence rates were 2.8% for anxiety, 1.5% for mood, 1.2% for ADHD, 2.5% for disruptive, 2.9% for substance abuse/dependence, and 7.5% for one or more DSM-IV disorders. Multivariate analyses identified few independent predictors of incidence. The most consistent factors across disorders involved indicators of stress. The role of adverse family context was particularly noteworthy, predicting incidence of every disorder examined. Personal resources such as mastery consistently enhanced resilience to onset of first episodes. The presence of multiple risk factors, cumulative burden, substantially increased risk of first incidence of all disorders examined. Conclusions: The incidence of any disorder of 7.5% was similar to two earlier studies using DSM-III-R criteria (8.9 and 10.6, respectively). This is the first study to estimate incidence of DSM-IV disorders for a range of diagnostic categories, and with the exception of substance use disorders, the rates are quite different from one earlier study using DSM-II-R criteria. A clear pattern emerged from the analyses. That is psychiatric disorders, like other chronic diseases, are the product of multiple factors and these factors in turn have effects on multiple disorders.

Studied the association between disturbed sleep and the functioning of adolescents, especially cumulative effects across multiple life domains. Results from 5,423 students suggest that adolescents experiencing disturbed sleep also experience a range of deficits in functioning. Available evidence does not make it possible to specify causal pathways. (SLD)

Analyzed middle school students (N=5,423) for ethnic differences in suicidal ideation, suicidal thoughts during the past two weeks, suicide plans, and suicide attempts. Results indicate that ideation was higher among females, older youths, and lower status youths. A similar pattern, except for gender, held for recent suicidal plans and attempts. (RJM)

THIS research examined fatalism, the belief in external control over life chances, as a risk factor for adolescent depression. Data were analyzed from a large (N = 5,423) sample of adolescents attending middle school in an ethnically diverse community in the southwest. It was hypothesized that adolescents who demonstrated greater fatalism would have a higher risk for depression. Bivariate associations between fatalism and depression were substantial, with an odds ratio (OR) of nearly 25 for depression with impairment and nearly 13 for depression without impairment. Adjustment for the effects of 10 covariates drawn from three domains (status attributes, stressors, and personal/social resources) essentially eliminated the association between fatalism and depression with impairment. However, the OR was still 2.6. The significant association between fatalism and depression without impairment (OR = 2.7) remained after adjustment for covariates. The results provide further support for models of depression which emphasize the role of psychosocial deficits. In this case, we found depression was associated not only with greater fatalism but also greater pessimism, lower self-esteem, more passive coping, and less social support.