Brady G. Case

Service Utilization for Lifetime Mental Disorders in U.S. Adolescents: Results of the National Comorbidity Survey–Adolescent Supplement (NCS-A)

OBJECTIVE Mental health policy for youth has been constrained by a paucity of nationally representative data concerning patterns and correlates of mental health service utilization in this segment of the population. The objectives of this investigation were to examine the rates and sociodemographic correlates of lifetime mental health service use by severity, type, and number of DSM-IV disorders in the National Comorbidity Survey-Adolescent Supplement. METHOD Face-to-face survey of mental disorders from 2002 to 2004 using a modified version of the fully structured World Health Organization Composite International Diagnostic Interview in a nationally representative sample of 6,483 adolescents 13 to 18 years old for whom information on service use was available from an adolescent and a parent report. Total and sector-specific mental health service use was also assessed. RESULTS Approximately one third of adolescents with mental disorders received services for their illness (36.2%). Although disorder severity was significantly associated with an increased likelihood of receiving treatment, half of adolescents with severely impairing mental disorders had never received mental health treatment for their symptoms. Service rates were highest in those with attention-deficit/hyperactivity disorder (59.8%) and behavior disorders (45.4%), but fewer than one in five affected adolescents received services for anxiety, eating, or substance use disorders. Comorbidity and severe impairment were strongly associated with service utilization, particularly in youth with behavior disorders. Hispanic and non-Hispanic Black adolescents were less likely than their White counterparts to receive services for mood and anxiety disorders, even when such disorders were associated with severe impairment. CONCLUSIONS Despite advances in public awareness of mental disorders in youth, a substantial proportion of young people with severe mental disorders have never received specialty mental health care. Marked racial disparities in lifetime rates of mental health treatment highlight the urgent need to identify and combat barriers to the recognition and treatment of these conditions.

Use and abuse of alcohol and illicit drugs in US adolescents: results of the National Comorbidity Survey-Adolescent Supplement.

CONTEXT Comprehensive descriptions of substance use and abuse trajectories have been lacking in nationally representative samples of adolescents. OBJECTIVE To examine the prevalence, age at onset, and sociodemographic correlates of alcohol and illicit drug use and abuse among US adolescents. DESIGN Cross-sectional survey of adolescents using a modified version of the Composite International Diagnostic Interview. SETTING Combined household and school adolescent samples. PARTICIPANTS Nationally representative sample of 10,123 adolescents aged 13 to 18 years. MAIN OUTCOME MEASURES Lifetime estimates of alcohol and illicit substance use and DSM-IV diagnoses of abuse, with or without dependence. RESULTS By late adolescence, 78.2% of US adolescents had consumed alcohol, 47.1% had reached regular drinking levels defined by at least 12 drinks within a given year, and 15.1% met criteria for lifetime abuse. The opportunity to use illicit drugs was reported by 81.4% of the oldest adolescents, drug use by 42.5%, and drug abuse by 16.4%. The median age at onset was 14 years for alcohol abuse with or without dependence, 14 years for drug abuse with dependence, and 15 years for drug abuse without dependence. The associations observed by age, sex, and race/ethnicity often varied significantly by previous stage of use. CONCLUSIONS Alcohol and drug use is common in US adolescents, and the findings of this study indicate that most cases of abuse have their initial onset in this important period of development. Prevention and treatment efforts would benefit from careful attention to the correlates and risk factors that are specific to the stage of substance use in adolescents.

Randomized, Double-Blind, Placebo-Controlled Trial of Vigabatrin for the Treatment of Cocaine Dependence in Mexican Parolees

OBJECTIVE Cocaine dependence is associated with severe medical, psychiatric, and social morbidity, but no pharmacotherapy is approved for its treatment in the United States. The atypical antiepileptic vigabatrin (gamma-vinyl gamma-aminobutyric acid [GABA]) has shown promise in animal studies and open-label trials. The purpose of the present study was to assess the efficacy of vigabatrin for short-term cocaine abstinence in cocaine-dependent individuals. METHOD Participants were treatment seeking parolees who were actively using cocaine and had a history of cocaine dependence. Subjects were randomly assigned to a fixed titration of vigabatrin (N=50) or placebo (N=53) in a 9-week double-blind trial and 4-week follow-up assessment. Cocaine use was determined by directly observed urine toxicology testing twice weekly. The primary endpoint was full abstinence for the last 3 weeks of the trial. RESULTS Full end-of-trial abstinence was achieved in 14 vigabatrin-treated subjects (28.0%) versus four subjects in the placebo arm (7.5%). Twelve subjects in the vigabatrin group and two subjects in the placebo group maintained abstinence through the follow-up period. The retention rate was 62.0% in the vigabatrin arm versus 41.5% in the placebo arm. Among subjects who reported prestudy alcohol use, vigabatrin, relative to placebo, was associated with superior self-reported full end-of-trial abstinence from alcohol (43.5% versus 6.3%). There were no differences between the two groups in drug craving, depressed mood, anxiety, or Clinical Global Impression scores, and no group differences in adverse effects emerged. CONCLUSIONS This first randomized, double-blind, placebo-controlled trial supports the safety and efficacy of short-term vigabatrin treatment of cocaine dependence.

Length of Stay of Pediatric Mental Health Emergency Department Visits in the United States

OBJECTIVE To compare pediatric mental health emergency department visits to other pediatric emergency department visits, focusing on length of stay. METHOD We analyzed data from the National Hospital Ambulatory Medical Care Survey, a nationally representative sample of US emergency department visits from 2001 to 2008, for patients aged ≤18 years (n = 73,015). Visits with a principal diagnosis of a mental disorder (n = 1,476) were compared to visits (n = 71,539) with regard to patient and hospital characteristics, treatment, and length of stay. Predictors of prolonged mental health visits were identified. RESULTS Mental health visits were more likely than other visits to arrive by ambulance (21.8% versus 6.3%, p < .001), to be triaged to rapid evaluation (27.9% versus 14.9%, p < .001), and to be admitted (16.4% versus 7.6%, p < .001) or transferred (15.7% versus 1.5%, p < .001). The median length of stay for mental health visits (169 minutes) significantly exceeded that of other visits (108 minutes). The odds of extended stay beyond 4 hours for mental health visits was almost twice that for other visits (adjusted odds ratio 1.9, 95% CI = 1.5-2.4) and was not explained by observed differences in evaluation, treatment, or disposition. Among mental health visits, advancing calendar year of study, intentional self-injury, age 6-13 years, Northeastern, Southern, and metropolitan hospital location, use of laboratory studies, and patient transfer all predicted extended stays. CONCLUSIONS Compared with other pediatric emergency visits, mental health visits are longer, are more frequently triaged to urgent evaluation, and more likely to result in patient admission or transfer, thereby placing distinctive burdens on US emergency departments.

Variation in use of buprenorphine and methadone treatment by racial, ethnic, and income characteristics of residential social areas in New York City.

National data indicate that patients treated with buprenorphine for opiate use disorders are more likely to be White, highly educated, and to have greater incomes than those receiving methadone, but patterns of buprenorphine dissemination across demographic areas have not been documented in major metropolitan areas where poverty, minority populations and injection heroin use are concentrated. Rates of buprenorphine and methadone treatment are compared among areas of New York City defined by their income and ethnic/racial composition. Residential social areas (hereinafter called social areas) were defined as aggregations of ZIP codes with similar race/ethnicity and income characteristics, and were formed based on clustering techniques. Treatment rates were obtained for each New York City ZIP code: buprenorphine treatment rates were based on the annual number of buprenorphine prescriptions written, and the methadone treatment rate on the number of methadone clinic visits for persons in each ZIP code. Treatment rates were correlated univariately with ethnicity and income characteristics of ZIP codes. Social area treatment rates were compared using individual ANOVA models for each rate. Buprenorphine and methadone treatment rates were significantly correlated with the ethnicity and income characteristics of ZIP codes, and treatment rates differed significantly across the social areas. Buprenorphine treatment rates were highest in the social area with the highest income and lowest percentage of Black and Hispanic residents. Conversely, the methadone treatment rate was highest in the social area with the highest percentage of low income and Hispanic residents. The uneven dissemination of 0pioid maintenance treatment in New York City may be reflective of the limited public health impact of buprenorphine in ethnic minority and low income areas. Specific policy and educational interventions to providers are needed to promote the use of buprenorphine for opiate use disorders in diverse populations.

Declining Use of Electroconvulsive Therapy in United States General Hospitals

BACKGROUND Falling duration of psychiatric inpatient stays over the past 2 decades and recent recommendations to tighten federal regulation of electroconvulsive therapy (ECT) devices have focused attention on trends in ECT use, but current national data have been unavailable. METHODS We calculated the annual number of inpatient stays involving ECT and proportion of general hospitals conducting the procedure at least once in the calendar year with a national sample of discharges from 1993 to 2009. We estimated adjusted probabilities that inpatients with severe recurrent major depression (n = 465,646) were treated in a hospital that conducts ECT and, if so, received the procedure. RESULTS The annual number of stays involving ECT fell from 12.6 to 7.2/100,000 adult US residents, driven by dramatic declines among elderly persons, whereas the percentage of hospitals conducting ECT decreased from 14.8% to 10.6%. The percentage of stays for severe recurrent major depression in hospitals that conducted ECT fell from 70.5% to 44.7%, whereas receipt of ECT where conducted declined from 12.9% to 10.5%. For depressed inpatients, the adjusted probability that the treating hospital conducts ECT fell 34%, whereas probability of receiving ECT was unchanged for patients treated in facilities that conducted the procedure. Adjusted declines were greatest for elderly persons. Throughout the period inpatients from poorer neighborhoods or who were publicly insured or uninsured were less likely to receive care from hospitals conducting ECT. CONCLUSIONS Electroconvulsive therapy use for severely depressed inpatients has fallen markedly, driven exclusively by a decline in the probability that their hospital conducts ECT.

Racial-Ethnic Disparities in Outpatient Mental Health Visits to U.S. Physicians, 1993–2008

OBJECTIVE The purpose of this study was to examine racial-ethnic differences in use of mental health treatment for a comprehensive range of specific disorders over time. METHODS Data from the National Ambulatory Medical Care Survey and the National Hospital Ambulatory Medical Care Survey were used to examine adult outpatient mental health visits to U.S. physicians from 1993 to 2008 (N=754,497). Annual visit prevalence for three racial-ethnic groups was estimated as the number of visits divided by the groups U.S. population size. Visit prevalence ratios (VPRs) were calculated as the minority groups prevalence divided by the non-Hispanic white prevalence. Analyses were stratified by diagnosis, physician type, patient characteristics, and year. RESULTS VPRs for any disorder were .60 (95% confidence interval [CI]=.52-.68) for non-Hispanic blacks and .58 (CI=.50-.67) for Hispanics. Non-Hispanic blacks were treated markedly less frequently than whites for obsessive-compulsive, generalized anxiety, attention-deficit hyperactivity, personality, panic, and nicotine use disorders but more frequently for psychotic disorders. Hispanics were treated far less frequently than whites for bipolar I, impulse control, autism spectrum, personality, obsessive-compulsive, and nicotine use disorders but more frequently for drug use disorders. Racial-ethnic differences in visits to psychiatrists were generally greater than for visits to nonpsychiatrists. Differences declined with increasing patient age and appear to have widened over time. CONCLUSIONS Racial-ethnic differences in receipt of outpatient mental health treatment from U.S. physicians varied substantially by disorder, provider type, and patient age. Most differences were large and did not show improvement over time.

No Care for the Caregivers: Declining Health Insurance Coverage for Health Care Personnel and Their Children, 1988–1998

OBJECTIVES This study examined trends in health insurance coverage for health care workers and their children between 1988 and 1998. METHODS We analyzed data from the annual March supplements of the Current Population Survey (CPS), a Census Bureau survey that collects information about health insurance from a nationally representative sample of noninstitutionalized US residents. RESULTS Of the health care personnel younger than 65 years, 1.36 million (90% confidence interval [CI] = 1.28 million, 1.45 million) were uninsured in 1998, up 83.4% from 1988; the proportion uninsured rose from 8.4% (90% CI = 7.8%, 9.1%) to 12.2% (90% CI = 11.5%, 12.9%). Declining coverage rates in the growing private-sector health care workforce---and declining health employment in the public sector, which provided health insurance benefits to more of its workers---accounted for the increases. Households with a health care worker included 1.12 million (90% CI = 1.05 million, 1.20 million) uninsured children, accounting for 10.1% (90% CI = 9.5%, 10.8%) of all uninsured children in the United States. CONCLUSIONS Health care personnel are losing health insurance coverage more rapidly than are other workers. Increasingly, the health care sector is consigning its own workers and their children to the ranks of the uninsured.

Racial differences in the availability and use of electroconvulsive therapy for recurrent major depression.

BACKGROUND Black Americans with depression were less likely to receive electroconvulsive therapy (ECT) than whites during the 1970s and 80s. This pattern was commonly attributed to treatment of blacks in lower quality hospitals where ECT was unavailable. We investigated whether a racial difference in receiving ECT persists, and, if so, whether it arises from lesser ECT availability or from lesser ECT use within hospitals conducting the procedure. METHODS Black or white inpatient stays for recurrent major depression from 1993 to 2007 (N=419,686) were drawn from an annual sample of US community hospital discharges. The marginal disparity ratio estimated adjusted racial differences in the probabilities of (1) admission to a hospital capable of conducting ECT (availability), and (2) ECT utilization if treated where ECT is conducted (use). RESULTS Across all hospitals, the probability of receiving ECT for depressed white inpatients (7.0%) greatly exceeded that for blacks (2.0%). Probability of ECT availability was slightly greater for whites than blacks (62.0% versus 57.8%), while probability of use was markedly greater (11.8% versus 3.9%). The white versus black marginal disparity ratio for ECT availability was 1.07 (95% confidence interval 1.06-1.07) and stable over the period, while the ratio for use fell from 3.2 (3.1-3.4) to 2.5 (2.4-2.7). LIMITATIONS Depressed persons treated in outpatient settings or receive no care are excluded from analyses. CONCLUSIONS Depressed black inpatients continue to be far less likely than whites to receive ECT. The difference arises almost entirely from lesser use of ECT within hospitals where it is available.

Irritability and elation in a large bipolar youth sample: relative symptom severity and clinical outcomes over 4 years.

OBJECTIVE To assess whether relative severity of irritability symptoms versus elation symptoms in mania is stable and predicts subsequent illness course in youth with DSM-IV bipolar I or II disorder or operationally defined bipolar disorder not otherwise specified. METHOD Investigators used the Kiddie Schedule for Affective Disorders and Schizophrenia for School-Age Children to assess the most severe lifetime manic episode in bipolar youth aged 7-17 years who were recruited from 2000 to 2006 as part of the Course and Outcomes of Bipolar Youth prospective cohort study (N = 361), conducted at university-affiliated mental health clinics. Subjects with at least 4 years of follow-up (N = 309) were categorized as irritable-only (n = 30), elated-only (n = 42), or both irritable and elated (n = 237) at baseline. Stability of this categorization over follow-up was the primary outcome. The course of mood symptoms and episodes, risk of suicide attempt, and functioning over follow-up were also compared between baseline groups. RESULTS Most subjects experienced both irritability and elation during follow-up, and agreement between baseline and follow-up group assignment did not exceed that expected by chance (κ = 0.03; 95% CI, -0.06 to 0.12). Elated-only subjects were most likely to report the absence of both irritability and elation symptoms at every follow-up assessment (35.7%, versus 26.7% of irritable-only subjects and 16.9% of those with both irritability and elation; P = .01). Baseline groups experienced mania or hypomania for a similar proportion of the follow-up period, but irritable-only subjects experienced depression for a greater proportion of the follow-up period than did subjects who were both irritable and elated (53.9% versus 39.7%, respectively; P = .01). The groups did not otherwise differ by course of mood episode duration, polarity, bipolar diagnostic type, suicide attempt risk, or functional impairment. CONCLUSIONS Most bipolar youth eventually experienced both irritability and elation irrespective of history. Irritable-only youth were at similar risk for mania but at greater risk for depression compared with elated-only youth and youth who had both irritability and elation symptoms.