The American Psychiatric Association (APA) has updated its Privacy Policy and Terms of Use, including with new information specifically addressed to individuals in the European Economic Area. As described in the Privacy Policy and Terms of Use, this website utilizes cookies, including for the purpose of offering an optimal online experience and services tailored to your preferences.

Please read the entire Privacy Policy and Terms of Use. By closing this message, browsing this website, continuing the navigation, or otherwise continuing to use the APA's websites, you confirm that you understand and accept the terms of the Privacy Policy and Terms of Use, including the utilization of cookies.

×
No Access

Trends in the frequency of schizophrenia by different diagnostic criteria

Published Online:https://doi.org/10.1176/ajp.134.6.631

The authors report results of rediagnoses of 128 cases from two decades (1932-1941 and 1947-1956) by clinicians using the Research Diagnostic Criteria as guidelines and compare these results to rediagnoses by clinicians in a previous study using more general guidelines. Although hospital records indicated an increased frequency of schizophrenia over the two decades, the rediagnosticians found no change or a decrease. Severity of symptoms did not change during the two decades, but patients in the second decade showed more borderline symptoms, leading to more diagnostic disagreement. The authors conclude that changes in diagnostic criteria and pateints' conditions influence admission trends for schizophrenia.

Access content

To read the fulltext, please use one of the options below to sign in or purchase access.