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The British Journal of Psychiatry (2003) 183: 50-56
© 2003 The Royal College of Psychiatrists

Institutionalisation and schizophrenia in Japan: social environments and negative symptoms

Nationwide survey of in-patients

IWAO OSHIMA, PhD

Department of Mental Health, Tokyo University Graduate School of Medicine, Tokyo

YOSHIO MINO, MD

College of Social Welfare, Osaka Prefecture University, Osaka

YOSHIMASA INOMATA, MD

Miyagi Prefecture Natori Hospital, Natori, Japan

Correspondence: Dr Iwao Oshima, Department of Mental Health, Tokyo University Graduate School of Medicine, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan. Tel: 3 5841 3612; fax: 3 5841 3392; 58 e-mail: i-oshima{at}aurora.dti.ne.jp

Declaration of interest None.

Funding detailed in Acknowledgements.

Background The number of psychiatric beds per capita in Japan is the highest in the world, and a replication of earlier British research is needed to identify possible means of improving the mental health system.

Aims To describe the current situation of psychiatric hospitals in Japan and to examine the relationship between negative symptoms of schizophrenia and social environments.

Method In-patients with schizophrenia were randomly selected from 139 hospitals. Data were obtained for 2758 participants using several scales, including the Manchester Scale and social environment scales.

Results Negative symptom scales showed a significant correlation with understimulating social environments in hospitals.

Conclusions This study confirms the results from the UK and provides evidence for the importance of community-based care and for providing more-stimulating rehabilitation environments.




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