RESUMO
Alcohol misuse among women is an important and growing problem. There is epidemiological and metabolic evidence that risk factors for and consequences of alcohol misuse are significantly different for women than for men. Understanding these differences is imperative if effective preventative and treatment interventions are to be undertaken. This article reviews the epidemiology of alcohol misuse by women, effects of alcohol misuse on women, fetuses, and relationships, and assessment and treatment strategies. We then suggest directions for future research in this field.
Assuntos
Consumo de Bebidas Alcoólicas/epidemiologia , Adulto , Consumo de Bebidas Alcoólicas/genética , Consumo de Bebidas Alcoólicas/terapia , Doenças Cardiovasculares/epidemiologia , Comorbidade , Cultura , Feminino , Transtornos do Espectro Alcoólico Fetal/epidemiologia , Nível de Saúde , Humanos , Pessoa de Meia-Idade , Gravidez , Complicações na Gravidez/epidemiologiaRESUMO
Thalamic structures involved in the unpleasant emotional or affective aspect of pain are poorly understood. We now describe studies of the region of the thalamic principal somatosensory nucleus (Vc) performed before thalamotomy for tremor in a patient who also had panic disorder. Microstimulation in the region posterior to Vc evoked chest pain, including a strong affective dimension, almost identical to that occurring during his panic attacks, as measured using a questionnaire. Results in our other patients indicate that stimulation-associated pain with a strong affective dimension occurred only in those patients who had previously experienced spontaneous pain with a strong affective component. These results are consistent with stimulation-evoked activation of limbic structures, which are connected through cortex with the region posterior to Vc and involved in the affective dimension of pain through conditioning by previous experience.
Assuntos
Emoções/fisiologia , Dor/fisiopatologia , Dor/psicologia , Tálamo/fisiopatologia , Adulto , Vias Aferentes/fisiopatologia , Mapeamento Encefálico , Dor no Peito/fisiopatologia , Estimulação Elétrica , Humanos , Masculino , Memória , Modelos Neurológicos , Modelos Psicológicos , Transtorno de Pânico/complicações , Córtex Somatossensorial/fisiologia , Tratos Espinotalâmicos/fisiopatologia , Técnicas Estereotáxicas , Tálamo/cirurgia , Tremor/complicações , Tremor/cirurgiaRESUMO
BACKGROUND: This exploratory study compares the prevalence of personality disorders and traits in people over and under 55 years of age. The comorbidity between personality and other psychiatric disorders is also examined. METHOD: Psychiatrists examined 810 subjects in a two-stage community survey. The semi-structured Standardized Psychiatric Examination was used to diagnose all DSM-III personality disorders and other psychiatric disorders. RESULTS: The older subjects were significantly less likely than the younger subjects to have any personality disorder (6.6% v. 10.5%; relative odds = 0.42, 95% confidence interval = 0.25-0.70, P < 0.001). Antisocial and histrionic personality disorders were much less prevalent in the older than younger subjects (P < 0.05). The older subjects also had significantly fewer maladaptive personality traits (chi 2 = 88.9, d.f. = 3, P < 0.001). The patterns of comorbidity between personality disorders and other psychiatric disorders were different in the two age groups. CONCLUSIONS: It is important to evaluate personality in patients of all ages. While some older patients no longer meet criteria for personality disorder, maladaptive traits may become evident during times of stress.
Assuntos
Transtornos da Personalidade/epidemiologia , Adolescente , Adulto , Fatores Etários , Baltimore/epidemiologia , Área Programática de Saúde , Comorbidade , Feminino , Humanos , Acontecimentos que Mudam a Vida , Masculino , Transtornos Mentais/diagnóstico , Transtornos Mentais/epidemiologia , Pessoa de Meia-Idade , National Institute of Mental Health (U.S.) , Transtornos da Personalidade/diagnóstico , Prevalência , Estados UnidosRESUMO
OBJECTIVE: The aims of this study were to estimate the prevalence and investigate the comorbidity and potential consequences of DSM-III personality disorders in the community. METHOD: A total of 810 adults were examined in the second stage of the Eastern Baltimore Mental Health Survey in 1981, part of the National Institute of Mental Health Epidemiologic Catchment Area program. The subjects were directly examined by psychiatrists using a semi-structured method that allowed diagnosis of all DSM-III personality disorders as well as other DSM-III psychiatric disorders. RESULTS: The prevalence of personality disorders in these adults was 5.9% (9.3% when provisional cases were included). Men had higher rates than women, and subjects who were separated or divorced had the highest rates. There was little comorbidity among specific personality disorders. Subjects with personality disorders were significantly more likely to have a history of sexual dysfunctions, alcohol use disorders, and drug use disorders as well as suicidal thoughts and attempts. In addition, they reported significantly more life events in the past year. Among subjects with any axis I disorder, those with personality disorders were judged by the psychiatrists to be more in need of treatment; however, only 21% were receiving treatment. CONCLUSIONS: Personality disorders are relatively common in the community. They are associated with axis I disorders and life events. Only one-fifth of the individuals who qualify for diagnoses of personality disorders in the community are receiving treatment.
Assuntos
Transtornos da Personalidade/epidemiologia , Adolescente , Adulto , Fatores Etários , Alcoolismo/epidemiologia , Baltimore/epidemiologia , Comorbidade , Escolaridade , Feminino , Inquéritos Epidemiológicos , Humanos , Acontecimentos que Mudam a Vida , Masculino , Estado Civil , Transtornos Mentais/diagnóstico , Transtornos Mentais/epidemiologia , Pessoa de Meia-Idade , Razão de Chances , Transtornos da Personalidade/diagnóstico , Prevalência , Escalas de Graduação Psiquiátrica , Grupos Raciais , Fatores Sexuais , Transtornos Relacionados ao Uso de Substâncias/epidemiologiaRESUMO
A total of 810 adults were examined by psychiatrists in the second stage of the Eastern Baltimore Mental Health Survey. A semistructured examination, the Standard Psychiatric Examination, was used. The relationships between obsessions and compulsions and personal characteristics, childhood behaviors, family history, and other psychopathology were evaluated. The estimated prevalence of obsessions and compulsions in this population was 1.5%. Cases were significantly more likely to report having had childhood fears, learning disabilities and a family history of alcoholism and suicidal behavior. There were significant positive relationships between scores on compulsive, borderline and histrionic personality disorder scales and the probability of obsessions and compulsions. These exploratory analyses in an epidemiologic sample may identify factors of etiologic importance in this condition.
Assuntos
Transtorno Obsessivo-Compulsivo/diagnóstico , Adolescente , Adulto , Baltimore/epidemiologia , Criança , Transtornos do Comportamento Infantil/psicologia , Pré-Escolar , Estudos Transversais , Escolaridade , Família , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Estado Civil , Pessoa de Meia-Idade , Transtorno Obsessivo-Compulsivo/epidemiologia , Transtorno Obsessivo-Compulsivo/etiologia , Transtornos da Personalidade/psicologia , Prevalência , Escalas de Graduação Psiquiátrica , Estudos Retrospectivos , Fatores de Risco , Estados UnidosRESUMO
A 20-item interview version of the General Health Questionnaire (GHQ) was used to presumptively identify cases with mental disorders in a sample of 810 community residents. Subjects also were examined by psychiatrists using the Present State Examination (PSE). The screening instrument performed well in detecting PSE-CATEGO syndromes related to anxiety and depression, but less well in detecting psychotic syndromes and cognitive impairment. The overall sensitivity of the instrument for any PSE-CATEGO syndrome was 48%. The study elucidates the specific nature of the psychopathology that this version of the GHQ is likely to detect in the community.
Assuntos
Transtornos Mentais/epidemiologia , Inventário de Personalidade/estatística & dados numéricos , População Urbana/estatística & dados numéricos , Adolescente , Adulto , Idoso , Transtornos de Ansiedade/diagnóstico , Transtornos de Ansiedade/epidemiologia , Transtornos de Ansiedade/psicologia , Baltimore/epidemiologia , Transtornos Cognitivos/diagnóstico , Transtornos Cognitivos/epidemiologia , Transtornos Cognitivos/psicologia , Estudos Transversais , Transtorno Depressivo/diagnóstico , Transtorno Depressivo/epidemiologia , Transtorno Depressivo/psicologia , Feminino , Humanos , Incidência , Masculino , Transtornos Mentais/diagnóstico , Transtornos Mentais/psicologia , Pessoa de Meia-Idade , Psicometria , Transtornos Psicóticos/diagnóstico , Transtornos Psicóticos/epidemiologia , Transtornos Psicóticos/psicologia , SíndromeRESUMO
The object of this study is to assess the internal validity of DSM-III personality constructs and to explore whether the constituent elements are better explained by an alternate internally coherent classification. A two-stage stratified random sample of subjects identified at the Baltimore site of the Epidemiologic Catchment Area (ECA) program were examined by psychiatrists for DSM-III personality attributes using a semistructured instrument. Dichotomous factor analysis was used in the confirmatory mode to test whether a single factor explained each of the 11 DSM-III personality disorders. This approach rejected a single explanatory factor for all but compulsive personality disorder. Exploratory factor analysis showed that these DSM-III personality features are parsimoniously described by a five-factor model. These factors are warmth, animation, timidity, trust, and scrupulousness.
Assuntos
Determinação da Personalidade/estatística & dados numéricos , Transtornos da Personalidade/epidemiologia , Escalas de Graduação Psiquiátrica/estatística & dados numéricos , Adolescente , Adulto , Idoso , Baltimore/epidemiologia , Estudos Transversais , Feminino , Humanos , Incidência , Masculino , Computação Matemática , Pessoa de Meia-Idade , Modelos Estatísticos , Desenvolvimento da Personalidade , Transtornos da Personalidade/classificação , Transtornos da Personalidade/diagnóstico , Transtornos da Personalidade/psicologia , Vigilância da População , Psicometria , SoftwareRESUMO
OBJECTIVE: The aim of this study was to assess the relationships between specific personality disorders and DSM-III axis I conditions in a community sample. METHOD: A total of 810 subjects were examined by psychiatrists in the second stage of the Eastern Baltimore Mental Health Survey, part of the Epidemiological Catchment Area Program of the National Institute of Mental Health. A semistructured examination, the Standardized Psychiatric Examination, was employed to assess axis I and axis II conditions. Scales for compulsive and antisocial personality disorders were derived from DSM-III criteria. The relationships between scores on these personality disorder scales and the presence of generalized anxiety disorder, alcohol use disorders (alcohol abuse and alcohol dependence), and simple phobia were evaluated by using logistic regression. RESULTS: Higher compulsive personality scores were associated with a greater odds of generalized anxiety disorder and simple phobia but a smaller odds of alcohol use disorders. In contrast, higher antisocial personality scores were associated with a greater odds of alcohol use disorders but a smaller odds of generalized anxiety disorder. There was no relationship between antisocial personality scores and simple phobia. CONCLUSIONS: Personality disorders have specific relationships to axis I conditions, which suggests different vulnerabilities but also different protective influences.
Assuntos
Transtornos Mentais/epidemiologia , Transtornos da Personalidade/epidemiologia , Adolescente , Adulto , Alcoolismo/classificação , Alcoolismo/diagnóstico , Alcoolismo/epidemiologia , Transtorno da Personalidade Antissocial/classificação , Transtorno da Personalidade Antissocial/diagnóstico , Transtorno da Personalidade Antissocial/epidemiologia , Transtornos de Ansiedade/classificação , Transtornos de Ansiedade/diagnóstico , Transtornos de Ansiedade/epidemiologia , Baltimore/epidemiologia , Transtorno da Personalidade Compulsiva/classificação , Transtorno da Personalidade Compulsiva/diagnóstico , Transtorno da Personalidade Compulsiva/epidemiologia , Feminino , Inquéritos Epidemiológicos , Humanos , Masculino , Transtornos Mentais/classificação , Transtornos Mentais/diagnóstico , Pessoa de Meia-Idade , Transtornos da Personalidade/classificação , Transtornos da Personalidade/diagnóstico , Transtornos Fóbicos/classificação , Transtornos Fóbicos/diagnóstico , Transtornos Fóbicos/epidemiologia , Escalas de Graduação Psiquiátrica/estatística & dados numéricos , Análise de Regressão , Terminologia como AssuntoRESUMO
Psychiatrists used a semi-structured Standardized Psychiatric Examination method to examine 810 adults drawn from a probability sample of eastern Baltimore residents in 1981. Of the population, 5.9% was found to be significantly depressed. DSM-III major depression (MD) had a prevalence of 1.1% and 'non-major depression' (nMD), our collective term for the other depressive disorder categories in DSM-III, had a prevalence of 3.4%. The two types of depression differed by sex ratio, age-specific prevalence, symptom severity, symptom profiles, and family history of suicide. Analyses using a multiple logistic regression model discerned that both types of depression were influenced by adverse life events, and that nMD was influenced strongly by gender, marital status, and lack of employment outside the home. Neither type of depression was influenced by income, education, or race. This study validates the concept of major depression as a clinical entity. Future studies of the aetiology, mechanism, and treatment of depression should distinguish between these two types of depression.
Assuntos
Transtorno Depressivo/epidemiologia , Adulto , Fatores Etários , Idoso , Transtorno Depressivo/classificação , Transtorno Depressivo/diagnóstico , Emprego , Família/psicologia , Feminino , Humanos , Acontecimentos que Mudam a Vida , Masculino , Estado Civil , Pessoa de Meia-Idade , Prevalência , Índice de Gravidade de Doença , Fatores Sexuais , Fatores SocioeconômicosRESUMO
OBJECTIVE: The authors sought to assess the quantity and quality of mood variation in depressed persons. METHOD: Using a visual analogue scale, they compared variation of mood in a group of patients (N = 9) with a DSM-III-R diagnosis of depressive disorder and in a group of nondepressed subjects (N = 9) over 12 consecutive hours. To quantify mood variation for each subject, the authors computed the standard deviation of each subject's 13 mood ratings on the visual analogue scale. To characterize the quality of mood variation within each subject, they plotted each subject's mood ratings as a function of time and applied complex demodulation to confirm cyclical patterns of mood variability (ultradian cycles). RESULTS: The depressed group demonstrated greater mood score variability over the course of the day. Both groups demonstrated ultradian cycles and circadian trends; however, the depressed group demonstrated ultradian cycles of significantly greater amplitude than the nondepressed group. CONCLUSIONS: Repeated assessments of mood at different times of the day may be necessary to obtain an accurate impression of a patient's mood state. Further, the mechanism of depressive disorders may include a deregulation of a normal oscillatory mood variation pattern.
Assuntos
Afeto , Ritmo Circadiano , Transtorno Depressivo/psicologia , Ciclos de Atividade/fisiologia , Adulto , Afeto/fisiologia , Ritmo Circadiano/fisiologia , Interpretação Estatística de Dados , Transtorno Depressivo/diagnóstico , Transtorno Depressivo/fisiopatologia , Feminino , Humanos , Masculino , Inventário de Personalidade/estatística & dados numéricos , Escalas de Graduação Psiquiátrica/estatística & dados numéricosRESUMO
The three-stage East Baltimore Mental Health Survey, conducted in 1981 as part of the Epidemiological Catchment Area Program, provided an opportunity to assess the prevalence of dementia and specific dementing disorders in a community-based, cross-sectional sample of the population. From the 3,841 households originally sampled, 810 individuals were selected for clinical psychiatric evaluation. Forty-one individuals were given a provisional diagnosis and referred to Stage 3 for differential diagnosis, with 32 individuals completing this evaluation. Thorough clinical evaluation of these cases resulted in an overall prevalence of dementia of 4.5% in those 65 years of age and older. The prevalence of specific dementing disorders was Alzheimer's disease (AD) (2.0%), Multi-Infarct Dementia (MID) (2.0%) and Mixed Dementia (MD) (0.5%). Prevalence increased with age for all dementias: Non-Whites had higher rates of dementia than Whites; females had higher rates of AD while males had higher rates of MID; and the prevalence of AD increased with increasing education, whereas the prevalence of MID decreased with increased education. Although this study includes only a small number of cases, necessitating some caution in interpreting the results, these figures do represent an estimate of the prevalence of severe dementing disorders and provide a basis for further community study.
Assuntos
Demência/diagnóstico , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Doença de Alzheimer/diagnóstico , Doença de Alzheimer/epidemiologia , Baltimore/epidemiologia , Demência/epidemiologia , Demência por Múltiplos Infartos/diagnóstico , Demência por Múltiplos Infartos/epidemiologia , Diagnóstico Diferencial , Feminino , Humanos , Masculino , PrevalênciaRESUMO
A two-stage probability sample of community subjects was developed with a full psychiatric examination employing DSM-III criteria in conjunction with the Epidemiological Catchment Area (ECA) survey conducted in Baltimore, MD. This report details the observation on those subjects diagnosed with compulsive personality disorder and compulsive personality traits. The results indicate that this condition has a prevalence of 1.7% in a general population. Male, white, married and employed individuals receive this diagnosis most often. Our data suggest a dimensional rather than categorical character for this disorder. The disorder imparts a vulnerability for the development of anxiety disorders.
Assuntos
Transtorno Obsessivo-Compulsivo/epidemiologia , Escalas de Graduação Psiquiátrica , Adolescente , Adulto , Baltimore/epidemiologia , Estudos Transversais , Feminino , Humanos , Incidência , Acontecimentos que Mudam a Vida , Masculino , Pessoa de Meia-Idade , Transtorno Obsessivo-Compulsivo/diagnóstico , Transtorno Obsessivo-Compulsivo/psicologiaRESUMO
The 1981 East Baltimore Mental Health Survey, part of the Epidemiological Catchment Area (ECA) program, provided data for the examination of the prevalence of delirium in the general adult population. From an original 3,841 households surveyed, 810 individuals were selected for psychiatric evaluation and, of these, 6 individuals were diagnosed as suffering from delirium. The estimated prevalence of delirium in the population was .4% and 1.1% among those 55 years of age and over. A comparison of these cases with cases of diagnosed dementia and individuals of the same age range who did not receive a psychiatric diagnosis found that those with a diagnosis of delirium suffer from a greater number of medical conditions, take more prescribed medications, and have a higher level of physical disability.
Assuntos
Delírio/epidemiologia , Idoso , Idoso de 80 Anos ou mais , Baltimore/epidemiologia , Dano Encefálico Crônico/diagnóstico , Dano Encefálico Crônico/epidemiologia , Dano Encefálico Crônico/etiologia , Estudos Transversais , Delírio/diagnóstico , Delírio/etiologia , Feminino , Humanos , Incidência , Masculino , Entrevista Psiquiátrica Padronizada , Pessoa de Meia-IdadeRESUMO
In conjunction with the Epidemiological Catchment Area (ECA) survey conducted in Baltimore, MD, a two-stage probability sample of community subjects was developed with a full psychiatric examination employing DSM-III criteria. This report details the observations on those subjects diagnosed with the DSM-III diagnosis Histrionic Personality Disorder. The results indicate that this condition can be diagnosed reliably and that it is a valid construct. It has a prevalence of 2.1% in a general population. Males and females are equally affected, suggesting that prior reports of an increased prevalence in females was an expression of ascertainment bias found in hospital-based studies. The diagnosis is associated with clear evidence of disturbance in the emotional, behavioural, and social realms. Individuals with this disorder tend to use health care facilities more frequently than others.
Assuntos
Transtorno da Personalidade Histriônica/epidemiologia , Adolescente , Adulto , Idoso , Baltimore/epidemiologia , Estudos Transversais , Feminino , Transtorno da Personalidade Histriônica/diagnóstico , Transtorno da Personalidade Histriônica/psicologia , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Determinação da Personalidade , Escalas de Graduação PsiquiátricaRESUMO
A study of homeless people in Baltimore, Md, focused on their health and other characteristics, with special emphasis on their needs for services. In the first stage, 298 men and 230 women were randomly selected from the missions, shelters, and jail in Baltimore to respond to a baseline interview that provided extensive sociodemographic and health-related data. In the second stage, a subsample of 203 subjects was randomly selected from the baseline survey respondents to have systematic psychiatric and physical examinations. Data are presented from both stages. Data from the first stage demonstrate, among other things, the high levels of disaffiliation of this population and their heavy involvement in substance abuse. Data from the clinical examinations demonstrate the high prevalence of mental illnesses and other psychiatric disorders and of a wide range of physical disorders and confirm the high prevalence of alcohol abuse disorders. The high rates of comorbidity of these conditions is demonstrated and data are provided on the subjects' needs for mental health and substance abuse services.
Assuntos
Nível de Saúde , Saúde , Pessoas Mal Alojadas/psicologia , Transtornos Mentais/epidemiologia , Adulto , Fatores Etários , Alcoolismo/epidemiologia , Baltimore , Atenção à Saúde/métodos , Feminino , Humanos , Masculino , Exame Físico/métodos , Distribuição Aleatória , Fatores SexuaisRESUMO
The General Health Questionnaire (GHQ) is a widely used method of assessing psychiatric distress in clinical settings and in the community. The authors administered a 20-item interview version of the GHQ and a battery of survey items on use of ambulatory health care services to 3,389 respondents in eastern Baltimore as part of the Epidemiologic Catchment Area survey. In addition, a subsample of these respondents (n = 810) was examined by research psychiatrists who provided a reference mental disorder diagnosis for comparison with GHQ results. Psychiatrists determined that 102 respondents had American Psychiatric Association's Diagnostic and Statistical Manual, third edition, (DSM-III) disorders suitable for detection by the GHQ. These respondents were categorized by the health service use they reported over the previous 6 months. A comparison indicated that 82% of the diagnosed cases with recent specialty care also had elevated GHQ scores. Among cases with recent general medical care, 52% had elevated GHQ scores. Among diagnosed cases reporting no recent ambulatory health care, only 38% had elevated GHQ scores. Receiver operating characteristic analysis demonstrated a similar trend. Cases of depression were separated into less severe cases (adjustment disorder with depressed mood) and more severe cases (major depression). There were relatively more cases of severe depression than cases of mild depression in those respondents reporting recent health service use compared with those respondents reporting no recent service use. This may account for the higher sensitivity of the GHQ in detecting psychiatric disorders for those persons utilizing health services compared with individuals using no health services.(ABSTRACT TRUNCATED AT 250 WORDS)
Assuntos
Serviços de Saúde/estatística & dados numéricos , Inquéritos Epidemiológicos , Entrevistas como Assunto , Transtornos Mentais/epidemiologia , Serviços de Saúde Mental/estatística & dados numéricos , Assistência Ambulatorial/estatística & dados numéricos , Baltimore , Métodos Epidemiológicos , Feminino , Humanos , Masculino , Transtornos Mentais/terapia , Pessoa de Meia-Idade , Inquéritos e QuestionáriosRESUMO
The authors describe the Standardized Psychiatric Examination (SPE), a new method for conducting psychiatric examinations in both clinical and research settings that preserves the clinical method. The SPE provides a consistent replicable format for eliciting and recording psychiatric history, signs, and symptoms without perturbing the patient-clinician interaction. By means of the SPE, the clinician can formulate diagnoses using DSM-III or ICD-9 criteria and yet generate CATEGO profiles derived from the Present State Examination, 9th edition. Psychiatrists using the SPE demonstrated high interrater reliability in ascertaining individual psychopathological symptoms (Kappa range, 0.55 to 1.0) and in making DSM-III diagnoses (Kappa range, 0.79 to 1.0) among a sample of study subjects (N = 43) drawn from both a psychiatric inpatient population and a large community sample of nonpatients from the Epidemiological Catchment Area (ECA) study. The implications of the SPE for clinical practice and for research are discussed.
Assuntos
Manuais como Assunto , Transtornos Mentais/diagnóstico , Escalas de Graduação Psiquiátrica , Área Programática de Saúde , Coleta de Dados/métodos , Coleta de Dados/normas , Hospitalização , Humanos , Transtornos Mentais/psicologia , Psicometria , PesquisaRESUMO
A psychiatric examination was conducted on 810 community dwelling subjects previously given a diagnosis derived from the Diagnostic Interview Schedule (DIS). The agreement in allocating subjects to a particular disorder was never high enough to encourage the confident replacement of a psychiatric diagnosis with a DIS diagnosis.
Assuntos
Transtornos Mentais/diagnóstico , Alcoolismo/diagnóstico , Transtorno Depressivo/diagnóstico , Inquéritos Epidemiológicos , Humanos , Maryland , Transtornos Mentais/epidemiologia , Escalas de Graduação PsiquiátricaRESUMO
We studied DSM-III diagnoses made by the lay Diagnostic Interview Schedule (DIS) method in relation to a standardized DSM-III diagnosis by psychiatrists in the two-stage Baltimore Epidemiologic Catchment Area mental morbidity survey. Generally, prevalence estimates based on the DIS one-month diagnoses were significantly different from those based on the psychiatric diagnoses. Subjects identified as cases by each method were often different subjects. Measured in terms of kappa, the chance-corrected degree of agreement between the DIS and psychiatrists' one-month diagnoses was moderate for DSM-III alcohol-use disorder (abuse and dependence combined), and lower for other mental disorder categories. The unreliability of either the DIS or psychiatric diagnoses is one potential explanation for the observed disagreements. Others include the following: insufficient or inadequate information (on which to base a diagnosis); recency of disorder; incomplete criterion coverage; overinclusive DIS questions; and degree of reliance on subject symptom reports. Further study of the nature and sources of these discrepancies is underway. This work should produce a more complete understanding of obstacles to mental disorder case ascertainment by lay interview and clinical examination methods in the context of a field survey.