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Sampling Issues in Family Studies of Schizophrenia
Cynthia M. Wild, PhD;
Linda N. Shapiro, PhD;
Theodor Abelin, MD
Arch Gen Psychiatry. 1974;30(2):211-215.
Abstract
Data from an epidemiologic study of schizophrenia were used to determine how many subjects in the large sample pool met eligibility criteria for family study. Of 549 patients with interview data only 29.1% were eligible. Eligible were compared with ineligible schizophrenic patients on 15 variables likely to influence family interaction patterns; the small group of male patients who actually cooperated in the Family Study were compared on the same variables with those who refused to participate. On nine variables the groups were similar, but they differed on six. Eligible and cooperating patients were of higher socioeconomic status and earlier birth order; they were younger when interviewed and when admitted to the hospital; and were more likely to have been diagnosed acute rather than paranoid or chronic schizophrenic.
Author Affiliations
Boston
From the Harvard Medical School (Drs. Wild, Shapiro, and Abelin); the Department of Psychiatry (Drs. Wild and Shapiro), Massachusetts Mental Health Center; and the Department of Epidemiology (Dr. Abelin), Harvard School of Public Health, Boston. Dr. Abelin is currently with the Department of Social and Preventive Medicine, University of Bern, Switzerland.
Footnotes
Accepted for publication July 18, 1973.
Reprint requests to Department of Psychiatry, Massachusetts Mental Health Center, 74 Fenwood Rd, Boston MA 02115 (Dr. C. Wild Cowgill).
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