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Minor physical anomalies and craniofacial measures in patients with treatment-resistant schizophrenia

Published online by Cambridge University Press:  17 December 2014

A.-S. Lin
Affiliation:
Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, 17 Xu-Zhou Road, Taipei 100, Taiwan Department of Psychiatry, Cardinal Tien Hospital, New Taipei City, Taiwan Department of General Psychiatry, Bali Psychiatric Center, Ministry of Health and Welfare, New Taipei City, Taiwan
S.-S. Chang
Affiliation:
Hong Kong Jockey Club Centre for Suicide Research and Prevention, University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China Ju Shan Hospital, Taoyuan, Taiwan
S.-H. Lin
Affiliation:
Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
Y.-C. Peng
Affiliation:
Department of General Psychiatry, Bali Psychiatric Center, Ministry of Health and Welfare, New Taipei City, Taiwan
H.-G. Hwu
Affiliation:
Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, 17 Xu-Zhou Road, Taipei 100, Taiwan Department of Psychiatry, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei, Taiwan
W. J. Chen*
Affiliation:
Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, 17 Xu-Zhou Road, Taipei 100, Taiwan Department of Psychiatry, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei, Taiwan
*
*Address for correspondence: W. J. Chen, M.D., Sc.D., Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, 17 Xu-Zhou Road, Taipei 100, Taiwan. (Email: [email protected])

Abstract

Background

Schizophrenia patients have higher rates of minor physical anomalies (MPAs) than controls, particularly in the craniofacial region; this difference lends support to the neurodevelopmental model of schizophrenia. Whether MPAs are associated with treatment response in schizophrenia remains unknown. The aim of this case–control study was to investigate whether more MPAs and specific quantitative craniofacial features in patients with schizophrenia are associated with operationally defined treatment resistance.

Method

A comprehensive scale, consisting of both qualitatively measured MPAs and quantitative measurements of the head and face, was applied in 108 patients with treatment-resistant schizophrenia (TRS) and in 104 non-TRS patients. Treatment resistance was determined according to the criteria proposed by Conley & Kelly (2001; Biological Psychiatry 50, 898–911).

Results

Our results revealed that patients with TRS had higher MPA scores in the mouth region than non-TRS patients, and the two groups also differed in four quantitative measurements (facial width, lower facial height, facial height, and length of the philtrum), after controlling for multiple comparisons using the false discovery rate. Among these dysmorphological measurements, three MPA item types (mouth MPA score, facial width, and lower facial height) and earlier disease onset were further demonstrated to have good discriminant validity in distinguishing TRS from non-TRS patients in a multivariable logistic regression analysis, with an area under the curve of 0.84 and a generalized R2 of 0.32.

Conclusions

These findings suggest that certain MPAs and craniofacial features may serve as useful markers for identifying TRS at early stages of the illness.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 2014 

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