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Dong M, Zeng LN, Zhang Q, Yang SY, Chen LY, Sim K, He YL, Chiu HFK, Sartorius N, Tan CH, Chong MY, Shinfuku N, Lin SK, Ng CH, Ungvari GS, Xiang YT. Antipsychotic Polypharmacy in Older Adult Asian Patients With Schizophrenia: Research on Asian Psychotropic Prescription Pattern. J Geriatr Psychiatry Neurol 2019; 32:304-311. [PMID: 31480982 DOI: 10.1177/0891988719862636] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND AND OBJECTIVE Antipsychotic polypharmacy (APP) is a controversial topic in the treatment of older adults with schizophrenia. The objective of this study was to examine the use of APP in older adult Asian patients with schizophrenia and its associated demographic and clinical factors. METHODS This study was based on the fourth survey of the consortium known as the Research on Asian Psychotropic Prescription Pattern for Antipsychotics. Fifteen Asian countries/territories participated in this survey, including Bangladesh, Mainland China, Hong Kong, India, Indonesia, Japan, Korea, Malaysia, Myanmar, Pakistan, Singapore, Sri Lanka, Taiwan, Thailand, and Vietnam. Basic demographic and clinical characteristics were collected using a standardized data collection form. RESULTS Among the 879 older adults with schizophrenia included in the survey, the rate of APP was 40.5%. Multiple logistic regression analysis revealed that higher antipsychotic doses (P < .001, odds ratio [OR] = 1.003, 95% confidence interval [CI]: 1.002-1.003), longer duration of illness (P = .02, OR = 1.845, 95% CI: 1.087-3.132), and the prescription of anticholinergics (P < .001, OR = 1.871, 95% CI: 1.329-2.635), second-generation antipsychotics (P = .001, OR = 2.264, 95% CI: 1.453-3.529), and first-generation antipsychotics (P < .001, OR = 3.344, 95% CI: 2.307-4.847) were significantly associated with APP. CONCLUSION Antipsychotic polypharmacy was common in older adult Asian patients with schizophrenia. Compared to the results of previous surveys, the use of APP showed a declining trend over time. Considering the general poor health status of older patients with schizophrenia and their increased risk of drug-induced adverse events, the use of APP in this population needs careful consideration.
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Affiliation(s)
- Min Dong
- 1 Unit of Psychiatry, Institute of Translational Medicine, Faculty of Health Sciences, & Center for Cognition and Brain Sciences, University of Macau, Macao SAR, China
| | - Liang-Nan Zeng
- 1 Unit of Psychiatry, Institute of Translational Medicine, Faculty of Health Sciences, & Center for Cognition and Brain Sciences, University of Macau, Macao SAR, China.,2 Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Sichuan Sheng, China
| | - Qinge Zhang
- 3 School of Mental Health, The National Clinical Research Center for Mental Disorders & Beijing Key Laboratory of Mental Disorders Beijing Anding Hospital & the Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China
| | - Shu-Yu Yang
- 4 Department of Pharmacy, Taipei City Hospital, Taipei, Taiwan
| | - Lian-Yu Chen
- 5 Taipei City Psychiatric Center, Taipei City Hospital, Taipei, Taiwan
| | - Kang Sim
- 6 Institute of Mental Health, Buangkok Green Medical Park, Singapore
| | - Yan-Ling He
- 7 Department of Psychiatric Epidemiology, Shanghai Mental Health Center, Shanghai, China
| | - Helen Fung-Kum Chiu
- 8 Department of Psychiatry, Chinese University of Hong Kong, Hong Kong SAR, China
| | - Norman Sartorius
- 9 Association for the Improvement of Mental Health Programmes, Geneva, Switzerland
| | - Chay-Hoon Tan
- 10 Department of Pharmacology, National University of Singapore, Singapore
| | - Mian-Yoon Chong
- 11 Chiayi Chang Gung Memorial Hospital and School of Medicine, Chang Gung University, Chiayi, Taiwan
| | - Naotaka Shinfuku
- 12 International Center for Medical Research, Kobe University School of Medicine, Kobe, Japan
| | - Shih-Ku Lin
- 13 Department of Psychiatry, School of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chee H Ng
- 14 Department of Psychiatry, University of Melbourne, Melbourne, Victoria, Australia
| | - Gabor S Ungvari
- 15 University of Notre Dame Australia, Fremantle, Australia.,16 Division of Psychiatry, School of Medicine, University of Western Australia, Perth, Australia
| | - Yu-Tao Xiang
- 1 Unit of Psychiatry, Institute of Translational Medicine, Faculty of Health Sciences, & Center for Cognition and Brain Sciences, University of Macau, Macao SAR, China
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