The study was supported by the Swedish Medical Research Council (grants B96-27X-11656-01A and K97-27X-11656-02B); the Faculty of Medicine, University of Gothenburg; the Vårdal Foundation; the Swedish Schizophrenia Fellowship; the Swedish National Board of Health and Welfare; the Söderström-Königska Foundation; the Center for Public Sector Research, University of Gothenburg; and the Torsten and Ragnar Söderberg Foundation. The authors thank Björn Areskoug, Ph.D., for statistical assistance and Torleif Ruud, Ph.D., for advice on the use of GAF scales.
The authors report no competing interests.