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We estimate prevalence, incidence and persistence of short sleep or sleep deprivation in a two wave cohort study of 4175 youths 11-17 years old at baseline and 3134 of these a year later. Data were collected using computer interviews and questionnaires. Sleep deprivation was defined as 6 h or less per night during the past 4 weeks. Weighted logistic regression procedures were employed to calculate prevalence, incidence, persistence/chronicity, and odds ratios. Prevalence rates and rates of persistence suggest sleep deprivation is highly prevalent and chronic. Multivariate analyses indicate that short sleep increases risk across multiple domains of dysfunction, suggesting pervasive deleterious effects. The broad impact of sleep deprivation and its pervasiveness suggests interventions will need to focus on multilevel changes to increase sleep time and reduce the negative impact of sleep deprivation among adolescents. (Contains 4 tables.)

A reexamination of ethnicity as a risk factor for adolescent suicidal behavior, focusing on whether Mexican American youths are at increased risk, was undertaken. Data from a sample of 4,175 African, European, and Mexican Americans, aged 11-17, are presented. We examined lifetime attempts and past year attempts, thoughts, and plans. Odds ratios, adjusting for covariates, indicate no differences between European and Mexican Americans on past year thoughts, plans, or attempts or lifetime attempts. Although some studies have reported Mexican American youths are at increased risk, we did not find any differences. Possible explanations for disparate results across studies are discussed, in particular methods effects.

Objective: The authors present prevalence data for adolescents in a large metropolitan area and examine the association of DSM-IV diagnoses with functional impairment and selected demographic correlates among European Americans (EA), African Americans (AA), and Mexican (MA) Americans. Method: The authors sampled 4,175 youths ages 11 to 17 years whose households were enrolled in large health maintenance organizations. Data were collected using questionnaires, the Diagnostic Interview Schedule for Children-IV and the Children's Global Assessment Scale. The data were collected in the Houston Metropolitan area in 1998-2000. Data on psychiatric disorders were derived from interviews with youths only. Results: AA had a lower prevalence of mood disorders, substance use disorders, and any disorders adjusted for Diagnostic Interview Schedule for Children-IV impairment or Children's Global Assessment Scale score than did others. EA had greatest prevalence of substance use disorders, whereas AA were lowest. After adjusting for covariates, EA had a higher risk for some disorders than AA. Effects of gender, age, parent education, family income, and marital status were not consistent across groups. Family income was protective only for EA. Conclusions: There appear to be few systematic differences between majority and minority adolescents at risk for psychiatric disorders. MA are not at increased risk contrasted to EA. AA had lower risk for some disorders, but adjusting for impairment and covariates eliminated most differences. Thus, multivariate analyses support the hypothesis that initial ethnic differences appear to be a function of factors associated with disadvantaged minority status rather than to distinctive ethnic culture. A noteworthy finding was that disadvantaged social status did not appear to increase the risk for disorders among minority youths. (Contains 4 tables.)

A reexamination of ethnicity as a risk factor for adolescent suicidal behavior, focusing on whether Mexican American youths are at increased risk, was undertaken. Data from a sample of 4,175 African, European, and Mexican Americans, aged 11-17, ate presented. We examined lifetime attempts and past year attempts, thoughts, and plans. Odds ratios, adjusting for covariates, indicate no differences between European and Mexican Americans on past year thoughts, plans, or attempts or lifetime attempts. Although some studies have reported Mexican American youths are at increased risk, we did not find any differences. Possible explanations for disparate results across studies are discussed, in particular methods effects.

Mexican American women reported more depressive symptoms than men (after controlling for effects of age, education, income) in two surveys conducted in Alameda County, California (1975, 1978). Among the married, the employed reported fewer symptoms than the nonemployed; there was no difference in depression scores of employed men and women. (Author/LC)

Sex differences in depressive symptomatology among Mexican Americans are examined using data from two sample surveys conducted in Alameda County, California, in 1975 and 1978. In both studies, women reported more depressive symptoms than men, even after controlling for the effects of age, education, and income. Among the married, the employed reported fewer depressive symptoms than the nonemployed, and controlling for the effects of employment on depression eliminated the sex differentials observed initially. Also, in both studies, there was no difference in the depression scores of employed men and women. This finding for Mexican Americans is at variance with most findings from other populations, in which employed men generally report less depression than their female counterparts. Another finding was that housewives in both studies reported more symptoms of depression than did working men, which is consistent with previous research results. In regard to the contrast between employed and nonemployed women, in one sample the housewives were more depressed while in the other there was no difference between these two groups. [ABSTRACT FROM PUBLISHER]

Objective: To examine the impact of insomnia among adolescents on somatic, interpersonal, and psychological functioning using data from a two-wave, prospective study.Methods: Subjects were adolescents 11-17 years of age sampled from managed care enrollment rosters in the United States. The baseline sample was 4175 and the follow-up sample a year later was 3136. Data were collected using computer-assisted personal interviews and self-administered questionnaires. Insomnia was measured using DSM-IV symptom criteria, scored as a summated scale and as separate symptoms. Indicators of somatic functioning were perceived health, limitations due to health problems, and impact of illness on family activities. Indicators of interpersonal functioning were social support, relations with parents, relations with peers and relations at school. Indicators of psychological functioning were self-esteem, perceived mental health, life satisfaction, and depression.Results: Symptoms of insomnia were common, with 17% reporting nonrestorative sleep, 6% difficulty initiating sleep, 7% daytime fatigue, and 5% daytime sleepiness almost every day. Without adjustment for insomnia at follow-up, the odds of dysfunction at follow-up for those with insomnia averaged 2.5 across 11 indicators of functioning. For 9 of 11 indicators, there was a clear dose-response relation such that moderate levels of insomnia increased risk and this risk increased with greater insomnia. Adjusting for insomnia at follow-up eliminated the association with somatic functioning and attenuated associations with interpersonal and psychological functioning.Discussion: These prospective data provide additional evidence that insomnia can have adverse consequences for the functioning of adolescents. Given the growing evidence for a relation between disturbed sleep and impaired adolescent functioning, more attention needs to be directed to identifying causal pathways and possible strategies for intervention. [ABSTRACT FROM AUTHOR]

The objective is to examine incidence, prevalence, and persistence of restricted or short sleep among adolescents and associated risk factors. Data are from a sample of 4,175 youths aged 11 to 17 at baseline and 3,134 followed up 1 year later. Restricted sleep was defined as 6 hr or less per night. Prevalence was 20%, 1-year incidence was 17%, and chronicity was 54%. Analyses identified few independent predictors: female, older age, schoolwork, extracurricular activities, and life stress. Odds ratios for incidence of sleep restriction on weeknights were 10 for 8 or more factors and 17 for persistence with 8 or more risk factors. This prospective study documents that incidence of sleep restriction was high. Restricted sleep also was prevalent and chronic and, like many other health problems, has multifactorial origins. Having multiple risk factors substantially increased risk of restricted sleep. Given the importance of sleep in this population, more focus is clearly needed, both clinically and epidemiologically.

The goal of this study was to estimate incidence of adolescent suicide attempts and predictors of attempts. Data were collected using diagnostic interviews and questionnaires with a sample of 4,175 youths 11-17 and 3,134 followed-up a year later. Total incidence was 0.95% and first incidence 0.84% for attempts. We found few significant independent predictors of attempts. Multivariate analyses identified only 2 independent predictors of first incidence (marijuana use and caregiver attempts). We did find evidence for cumulative effects of risk factors, with increased odds of attempts with increasing number of risk factors. The difficulty in identifying a common set of modifiable risk factors continues to make development of effective interventions difficult. However, based on our results and those of other researchers, the impact of the cumulative risk conferred by multiple factors would seem to offer a viable strategy for reducing risk of suicide attempts as well as other mental health outcomes among adolescents.

Objective: To estimate the incidence, chronicity, and remission of symptoms of insomnia and to examine factors associated with the incidence and chronicity of insomnia among adolescents., Methods: Data were collected using diagnostic interviews and questionnaires from 4175 youths aged 11 to 17 years at baseline, and 3134 of these youths followed-up a year later. Subjects were sampled from large managed care populations in a metropolitan area of over 4.7 million. Insomnia was assessed by youth-reported DSM-IV symptom criteria., Results: One year incidence was 13.9% for 1 or more symptoms, 5.5% for 1 or more symptoms plus daytime fatigue or sleepiness, and 5.3% for insomnia caseness. Rates of chronicity were 45.8% for 1 or more symptoms, 34.7% with daytime fatigue or sleepiness, and 22.8% for insomnia caseness. There were no effects of age, sex, or family income in predicting incidence or chronicity of insomnia. There was a weak association of both somatic and psychological dysfunction with risk of future sleep outcomes, with stronger prediction for psychological dysfunction., Conclusions: These results document further the public health burden of insomnia among adolescents. Prevalence of insomnia is comparable to that of other major psychiatric disorders such as mood, anxiety, disruptive, and substance use disorders. Incidence over one year also is high. Insomnia represents a chronic condition, further enhancing burden.

The purpose of this study was to examine the concordance of parental and adolescent reports of adolescents having emotional and behavioral problems. Data were collected from youths (age 11-17) and adult caregivers from a community-based sample of households. The sample consisted of 4175 youths and their caregivers (37.8% European, 35.0% African, 25.4% Latino, and 1.8% other American). Indicators of emotional and/or behavioral problems were global indicators: perceived mental health, life satisfaction, happiness, interpersonal problems at home, and problems at school. Overall, parent-child concordance on the indicators of mental health was low, with a mean kappa value of 0.12. In multivariate analyses, European American parent-youth dyads were significantly more likely to be concordant on reports of perceived mental health, problems at home, and problems at school than African American and Latino dyads. Our data suggest that ethnicity is a significant factor in parental labeling and awareness of adolescent mental health problems. Future research should examine whether the extent to which greater lack of concordance on the indicators of mental health by minority parent-child dyads plays a role in entry into and retention in mental health care.