The natural history of adolescent drug use.
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Biomedical subjects
Publications and source records attributed to L N Robins.
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In a sample of 1,289 alcoholics from four clinical sites, the overall mortality rate after five to eight years of observation was 22.0 per cent, 3.1 times the expected rate. Patients from the medical and surgical services of a general hospital suffered 4.0 times the rate of expected mortality and died most often of medical causes associated with alcoholism. Patients of the public alcoholism ward had a mortality rate 3.3 times the expected rate and died of causes often associated with low social class. Private psychiatric patients had a mortality rate 2.3 times the expected rate, and psychiatric outpatients had an excess mortality ratio of 2.1. Sample site must be considered as a variable in the study of mortality among alcoholics.
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A new interview schedule allows lay interviewers or clinicians to make psychiatric diagnoses according to DSM-III criteria, Feighner criteria, and Research Diagnostic Criteria. It is being used in a set of epidemiological studies sponsored by the National Institute of Mental Health Center for Epidemiological Studies. Its accuracy has been evaluated in a test-retest design comparing independent administrations by psychiatrists and lay interviewers to 216 subjects (inpatients, outpatients, ex-patients, and nonpatients).
A psychiatric diagnostic interview that can be reliably and validly administered by nonpsychiatric physicians and lay interviewers has both research and clinical applications. We examined the interrater reliability and procedural validity of the Renard Diagnostic Interview (RDI), an instrument designed for these purposes. Randomly selected psychiatric inpatients were interviewed once by a psychiatrist using our standard departmental research interview and were then given RDIs by two psychiatrists, two lay interviewers, or one of each. The reliability of the RDI is estimated by examining diagnostic concordance for the two RDI interviews. Procedural validity is estimated by examining diagnostic concordance between the RDI and the traditional departmental interview. Both reliability and procedural validity were found to be high, and the study demonstrates that lay interviewers using the RDI after a brief period of training can obtain accurate diagnostic information.
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The NIMH Diagnostic Interview Schedule was administered by psychiatrists to 216 individuals. The DSM-III, Feighner, and RDC diagnoses derived from the computerized interview results were then compared for eight psychiatric disorders. Rates of diagnostic concordance among the systems are given, and the causes of diagnostic discrepancies are discussed. Diagnostic concordance was highest for mania and alcoholism and lowest for schizophrenia and antisocial personality disorder. Implications of these findings and future research directions are discussed.
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In order to investigate the long-term psychological consequences of Viet Nam combat, the authors located and personally interviewed a group of 571 randomly selected Viet Nam veterans and 284 matched civilian controls 3 years after the veterans returned to the United States. In the veterans they found a weak association between combat and subsequent depressive symptoms, but the association did not persist after controlling for preservice factors. The incidence of depressive symptoms and syndromes was similar when veterans were compared with nonveterans. Results are contrasted with a 12-month follow-up study of the same veterans in which a stronger association between combat and later depression was found.
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To aid the President's Commission on Mental Health as well as the nonspecialist, the uses and developments of psychiatric epidemiology are briefly sketched. In the past few years, methods have been innovated that are capable of making differential diagnoses on a lifetime basis. We need instruments and tools that provide sufficiently detailed information to be of real use for prevention, intervention, and social policy; many such developments are now within our grasp. The problems are prospects of epidemiology, and needed administration and educational supports for future application to the question of who gets ill and why are discussed.
Results are compared in studies of 4 male cohorts - 1 all white, 1 all black, and 2 racially representative of the population - growing up in different eras, followed past varying portions of their adult lives, living in different parts of the US. Despite sample differences and differences in sources of information and in the variables used to measure both childhood predictors and adult outcomes, some striking replications appear with respect to childhood predictors of adult antisocial behaviour. All types of antisocial behaviour in childhood predict a high level of antisocial behaviour in adulthood and each kind of adult antisocial behaviour is predicted by the number of childhood antisocial behaviours, indicating that adult and childhood antisocial behaviour both form syndromes and that these syndromes are closely interconnected. Also confirmed across studies are: (1) adult antisocial behaviour virtually requires childhood antisocial behaviour; (2) most antisocial children do not become antisocial adults; (3) the variety of antisocial behaviour in childhood is a better predictor of adult antisocial behaviour than is any particular behaviour; (4) adult antisocial behaviour is better predicted by childhood behaviour than by family background or social class of rearing; (5) social class makes little contribution to the prediction of serious adult antisocial behaviour.
This article reviews some methodological aspects of studies of diagnostic reliability in psychiatry. We define and discuss the concept of interrater reliability and review some of the ways in which the design of the reliability study can influence the results. Three basic methodological issues are raised, including: importance of structured interviews and objective diagnostic criteria, the importance of a test/retest vs an interviewer/observer design, and the calculation of reliability in a way that takes chance agreement into account.
A screening interview for Briquet syndrome consisting of 14 symptom questions was administered to a group of 50 medically ill women. No patient was found eligible for a diagnosis of Briquet syndrome, a frequency less than the estimated general population prevalence of 1% to 2%. When symptoms explainable by known organic disorder were considered positive, 14% of patients became eligible for the diagnosis. We consider this a low enough rate to allow screening by lay interviewers. A frequency distribution of symptoms comparing the medically ill women and a group of psychiatric clinic women with Briquet syndrome shows that the Briquet group had both more symptoms and distinctive patterns of symptoms.