期刊
BRITISH JOURNAL OF PSYCHIATRY
卷 196, 期 6, 页码 460-466出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1192/bjp.bp.109.069328
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- German Federal Ministry for Education and Research BMBF [01 GI 0032, 01 GI 0232]
Background Early improvement with treatment is thought to be important in patients with first-episode schizophrenia, yet a valid definition is still outstanding. Aims To develop a valid definition of early improvement and test its predictive validity regarding response and remission Method We examined 188 in-patients with first-episode schizophrenia. Early improvement was defined as improvement in Positive and Negative Syndrome Scale (PANSS) total score at week 2, response as a 40% PANSS total score improvement at end-point, and remission according to consensus criteria. Results Reasonable predictive validity of early improvement was found for a 46% PANSS total score improvement at week 2 and a 50% improvement for remission (area under the curve: response 0.707, remission 0.692). Estimated confidence intervals ranged from 26 to 62% PANSS reduction for response and remission. Conclusions Patients with a first episode of schizophrenia should improve by at least 30% in PANSS total score at week 2 to achieve response and remission.
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