Objective To present estimates of the lifetime prevalence of DSM-IV mental disorders with and without severe impairment, their comorbidity across broad classes of disorder, and their sociodemographic correlates. Method The National Comorbidity Survey–Adolescent Supplement NCS-A is a nationally representative face-to-face survey of 10,123 adolescents aged 13 to 18 years in the continental United States. DSM-IV mental disorders were assessed using a modified version of the fully structured World Health Organization Composite International Diagnostic Interview. Results Anxiety disorders were the most common condition (31.9%), followed by behavior disorders (19.1%), mood disorders (14.3%), and substance use disorders (11.4%), with approximately 40% of participants with one class of disorder also meeting criteria for another class of lifetime disorder. The overall prevalence of disorders with severe impairment and/or distress was 22.2% (11.2% with mood disorders, 8.3% with anxiety disorders, and 9.6% behavior disorders). The median age of onset for disorder classes was earliest for anxiety (6 years), followed by 11 years for behavior, 13 years for mood, and 15 years for substance use disorders. Conclusions These findings provide the first prevalence data on a broad range of mental disorders in a nationally representative sample of U.S. adolescents. Approximately one in every four to five youth in the U.S. meets criteria for a mental disorder with severe impairment across their lifetime. The likelihood that common mental disorders in adults first emerge in childhood and adolescence highlights the need for a transition from the common focus on treatment of U.S. youth to that of prevention and early intervention.

Lifetime Prevalence of Mental Disorders in U.S. Adolescents: Results from the National Comorbidity Survey Replication-Adolescent Supplement (NCS-A)

Results: Although 3-month prevalence of any disorder averaged 13.3% (95% confidence interval [CI], 11.7%15.0%), during the study period 36.7% of participants (31% of girls and 42% of boys) had at least 1 psychiatric disorder. Some disorders (social anxiety, panic, depression, and substance abuse) increased in prevalence, whereas others, including separation anxiety disorder and attention-deficit/hyperactivity disorder (ADHD), decreased. Lagged analyses showed that children with a history of psychiatric disorder were 3 times more likely than those with no previous disorder to have a diagnosis at any subsequent wave (odds ratio, 3.7; 95% CI, 2.94.9; P.001). Risk from a previous diagnosis was high among both girls and boys, but it was significantly higher among girls. Continuity of the same disorder (homotypic) was significant for all disorders except specific phobias. Continuity from one diagnosis to another (heterotypic) was significant from depression to anxiety and anxiety to depression, from ADHD to oppositional defiant disorder, and from anxiety and conduct disorder to substance abuse. Almost all the heterotypic continuity was seen in girls. Conclusions: The risk of having at least 1 psychiatric disorder by age 16 years is much higher than point estimates would suggest. Concurrent comorbidity and homotypic and heterotypic continuity are more marked in girls than in boys.

https://jamanetwork.com/journals/jamapsychiatry/articlepdf/207725/YOA20769.pdf

Prevalence and Development of Psychiatric Disorders in Childhood and Adolescence

A scheme is proposed for determining when a psychological treatment for a specific problem or disorder may be considered to be established in efficacy or to be possibly efficacious. The importance of independent replication before a treatment is established in efficacy is emphasized, and a number of factors are elaborated that should be weighed in evaluating whether studies supporting a treatment's efficacy are sound. It is suggested that, in evaluating the benefits of a given treatment, the greatest weight should be given to efficacy trials but that these trials should be followed by research on effectiveness in clinical settings and with various populations and by cost-effectiveness research.

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Defining Empirically Supported Therapies

This article reviews the various literatures on the adjustment of children of depressed parents, difficulties in parenting and parent-child interaction in these families, and contextual factors that may play a role in child adjustment and parent depression. First, issues arising from the recurrent, episodic, heterogeneous nature of depression are discussed. Second, studies on the adjustment of children with a depressed parent are summarized. Early studies that used depressed parents as controls for schizophrenic parents found equivalent risk for child disturbance. Subsequent studies using better-defined samples of depressed parents found that these children were at risk for a full range of adjustment problems and at specific risk for clinical depression. Third, the parenting difficulties of depressed parents are described and explanatory models of child adjustment problems are outlined. Contextual factors, particularly marital distress, remain viable alternative explanations for both child and parenting problems. Fourth, important gaps in the literature are identified, and a consistent, if unintentional, "mother-bashing" quality in the existing literature is noted. Given the limitations in knowledge, large-scale, long-term, longitudinal studies would be premature at this time.

Children of depressed parents: an integrative review.

Background
The literature on the prevalence of mental disorders affecting children and adolescents has expanded significantly over the last three decades around the world. Despite the field having matured significantly, there has been no meta-analysis to calculate a worldwide-pooled prevalence and to empirically assess the sources of heterogeneity of estimates.

Methods
We conducted a systematic review of the literature searching in PubMed, PsycINFO, and EMBASE for prevalence studies of mental disorders investigating probabilistic community samples of children and adolescents with standardized assessments methods that derive diagnoses according to the DSM or ICD. Meta-analytical techniques were used to estimate the prevalence rates of any mental disorder and individual diagnostic groups. A meta-regression analysis was performed to estimate the effect of population and sample characteristics, study methods, assessment procedures, and case definition in determining the heterogeneity of estimates.

Results
We included 41 studies conducted in 27 countries from every world region. The worldwide-pooled prevalence of mental disorders was 13.4% (CI 95% 11.3–15.9). The worldwide prevalence of any anxiety disorder was 6.5% (CI 95% 4.7–9.1), any depressive disorder was 2.6% (CI 95% 1.7–3.9), attention-deficit hyperactivity disorder was 3.4% (CI 95% 2.6–4.5), and any disruptive disorder was 5.7% (CI 95% 4.0–8.1). Significant heterogeneity was detected for all pooled estimates. The multivariate metaregression analyses indicated that sample representativeness, sample frame, and diagnostic interview were significant moderators of prevalence estimates. Estimates did not vary as a function of geographic location of studies and year of data collection. The multivariate model explained 88.89% of prevalence heterogeneity, but residual heterogeneity was still significant. Additional meta-analysis detected significant pooled difference in prevalence rates according to requirement of funcional impairment for the diagnosis of mental disorders.

Conclusions
Our findings suggest that mental disorders affect a significant number of children and adolescents worldwide. The pooled prevalence estimates and the identification of sources of heterogeneity have important implications to service, training, and research planning around the world.

Annual Research Review: A meta-analysis of the worldwide prevalence of mental disorders in children and adolescents

This DataWatch explores the roles of human service sectors (mental health, education, health, child welfare, and juvenile justice) in providing mental health services for children. The data are from the first wave of the Great Smoky Mountains Study of Youth, a population-based study of psychopathology and mental health service use among children. The results show somewhat higher rates of mental health service use than has been reported previously, while continuing to show a substantial amount of unmet need, even among children with both a psychiatric diagnosis and functional impairment. The findings point to a significant role for the education sector, suggesting that schools may function as the de facto mental health system for children and adolescents.

Children's mental health service use across service sectors

Background: The Great Smoky Mountains Study of youth focuses on the relationship between the development of psychiatric disorder and the need for and use of mental health services. Methods: A multistage, overlapping cohorts design was used, in which 4500 of the 11 758 children aged 9, 11, and 13 years in an 11-country area of the southeastern United States were randomly selected for screening for psychiatric symptoms. Children who scored in the top 25% on the screening questionnaire, together with a 1 in 10 random sample of the rest, were recruited for 4 waves of intensive, annual interviews (n=1015 at wave 1). In a parallel study, all American Indian children aged 9, 11, and 13 years were recruited (N=323 at wave 1). Results: The 3-month prevalence (±SE) of any DSMIII-R axis I disorder in the main sample, weighted to reflect population prevalence rates, was 20.3%±1.7%. The most common diagnoses were anxiety disorders (5.7%±1.0%), enuresis (5.1%±1.0%), tic disorders (4.2%±0.9%), conduct disorder (3.3%±0.6%), oppositional defiant disorder (2.7%±0.4%), and hyperactivity (1.9%±0.4%). Conclusions: The prevalence of psychiatric disorder in this rural sample was similar to rates reported in other recent studies. Poverty was the strongest demographic correlate of diagnosis, in both urban and rural children.

https://jamanetwork.com/journals/PSYCH/articlepdf/497702/archpsyc_53_12_012.pdf

The Great Smoky Mountains Study of Youth. Goals, design, methods, and the prevalence of DSM-III-R disorders.

OBJECTIVES: Pediatric chronic physical illness and adult psychiatric disorders are substantial sources of burden for family care-takers, but little attention has been paid to parental burden resulting from children's or adolescents' psychiatric disorders. This paper describes the predictors of perceived parental burden and its impact on the use of specialty mental health and school services. METHODS: A representative general population sample of 1015 9-, 11-, and 13-year-olds and their parents completed structured psychiatric diagnostic interviews and the Child and Adolescent Burden Assessment. RESULTS: Weighted estimates indicated that 10.7% of parents in the general population perceived burden resulting from their children's symptomatology. Significant predictors of perceived burden were levels of child symptomatology and impairment and parental mental health problems. Children's depressive and anxiety disorders were associated with less burden than other diagnoses. The effects of child disorder severity on specialty mental health service use appeared to be mediated by the level of burden induced. CONCLUSIONS: Substantial levels of parental burden resulted from child psychiatric disorders and were a major reason for specialist mental health service use.

Perceived parental burden and service use for child and adolescent psychiatric disorders.

/pdf/perceived-parental-burden-andservice-useforchild-3j4vo0wrp7.pdf

Perceived Parental Burden andService UseforChild andAdolescent Psychiatric Disorders

• With few exceptions, published studies fail to indicate that theDSM-IIIpersonality disorders can be distinguished from each other with respect to etiology, prognosis, treatment response, or family history. The Structured Interview for theDSM-IIIPersonality Disorders (SIDP) was developed to improve axis II diagnostic reliability, and hence allow validity testing of axis II. Sixty-three subjects were independently rated by two interviewers using the SIDP. The k coefficients for interrater agreement reached .70 or higher for histrionic, borderline, and dependent personalities. While it is impossible to separate the validity testing of the SIDP from validity testing of theDSM-IIIpersonality criteria themselves, preliminary results from 102 inpatient SIDP interviews suggest some criterion-based validity with respect to standard personality rating scales and some construct validity with respect to the dexamethasone suppression test.

https://jamanetwork.com/HttpHandlers/ArticlePdfHandler.ashx?journal=PSYCH&articleId=493589&pdfFileName=archpsyc_42_6_008.pdf

Dalene Stangl

Papers

Children's mental health service use across service sectors

The Great Smoky Mountains Study of Youth. Goals, design, methods, and the prevalence of DSM-III-R disorders.

Perceived parental burden and service use for child and adolescent psychiatric disorders.

Perceived Parental Burden andService UseforChild andAdolescent Psychiatric Disorders

A Structured Interview for the DSM-III Personality Disorders: A Preliminary Report