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BioMed Research International
Volume 2015, Article ID 730291, 6 pages
http://dx.doi.org/10.1155/2015/730291
Research Article

The Effect of Nicotine Dependence on Psychopathology in Patients with Schizophrenia

1Department of Psychological Medicine, Faculty of Medicine Building, University of Malaya, 50603 Kuala Lumpur, Malaysia
2Department of Psychiatry and Mental Health, Hospital Selayang, Lebuhraya Selayang-Kepong, 68100 Batu Caves, Selangor, Malaysia
3Clinical Academic Unit (Family Medicine), Newcastle University Medicine Malaysia, No.1 Jalan Sarjana 1, Kota Ilmu, Educity@Iskandar, 79200 Nusajaya, Johor, Malaysia

Received 12 August 2014; Revised 7 October 2014; Accepted 8 October 2014

Academic Editor: Narayana Manjunatha

Copyright © 2015 Anne Yee et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Introduction. Our study aims to determine the prevalence of nicotine dependence and investigate the effect of nicotine dependence on psychopathology among schizophrenia patients. Methods. A cross-sectional study was carried out in an outpatient psychiatric clinic at a general hospital in Malaysia. 180 recruited subjects were administered the Malay version of Mini International Neuropsychiatric Interview (MINI), the Positive and Negative Symptom Scale (PANSS), and the Malay version of Fagerstrom Test for Nicotine Dependence (FTND-M) questionnaires. Results. The prevalence of nicotine dependence among the subjects was 38.1% () and they were mainly composed of male gender, Malay ethnicity, being treated with atypical antipsychotics, and taking other illicit drugs or alcohol. Subjects with severe nicotine dependence scored less in the negative subscale of PANSS compared with the nonsmokers (). On performing the hierarchy multiple regressions, dependence status still significantly predicted negative scores after adjusting the confounders (, ). Conclusion. The rate of nicotine use disorder among schizophrenia patients in this study is higher than that of the general population in Malaysia. The significant association between nicotine dependence and negative psychopathology symptoms will help the healthcare practitioners in their management of nicotine dependence among schizophrenia patients.