Use of clozapine in older Asian patients with schizophrenia between 2001 and 2009.

<h4>Background</h4>To date there has been no large-scale international study that examined the use of clozapine in older patients with schizophrenia. This study examined the use of clozapine and its demographic and clinical correlates in older patients with schizophrenia in East Asia dur...

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Autores principales: Yu-Tao Xiang, Robert W Buchanan, Gabor S Ungvari, Helen F K Chiu, Kelly Y C Lai, You-Hong Li, Tian-Mei Si, Chuan-Yue Wang, Edwin H M Lee, Yan-Ling He, Shu-Yu Yang, Mian-Yoon Chong, Ee-Heok Kua, Senta Fujii, Kang Sim, Michael K H Yong, Jitendra K Trivedi, Eun-Kee Chung, Pichet Udomratn, Kok-Yoon Chee, Norman Sartorius, Chay-Hoon Tan, Naotaka Shinfuku
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Publicado: Public Library of Science (PLoS) 2013
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Acceso en línea:https://doaj.org/article/bad5a5c5f78b4380b3fe7bce7d16d8b0
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spelling oai:doaj.org-article:bad5a5c5f78b4380b3fe7bce7d16d8b02021-11-18T07:42:26ZUse of clozapine in older Asian patients with schizophrenia between 2001 and 2009.1932-620310.1371/journal.pone.0066154https://doaj.org/article/bad5a5c5f78b4380b3fe7bce7d16d8b02013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23762478/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>To date there has been no large-scale international study that examined the use of clozapine in older patients with schizophrenia. This study examined the use of clozapine and its demographic and clinical correlates in older patients with schizophrenia in East Asia during the period between 2001 and 2009.<h4>Method</h4>Information on 1,157 hospitalized patients with schizophrenia aged 50 or older in five East Asian countries and territories (China, Hong Kong, Korea, Singapore and Taiwan) was extracted from the database of the Research on Asian Psychotropic Prescription Patterns (REAP) project. Socio-demographic and clinical characteristics and prescription of psychotropic medications were recorded.<h4>Results</h4>Clozapine was prescribed for 20.6% of the pooled sample; 19.0% in 2001, 19.4% in 2004 and 22.9% in 2009. Multiple logistic regression analysis of the whole sample revealed that patients taking clozapine had a longer duration of illness, more negative symptoms and were less likely to receive first generation antipsychotic and anticholinergic drugs, but more likely to report weight gain compared to those not receiving clozapine. Compared to those in other sites, older patients in China were more likely to receive clozapine.<h4>Conclusions</h4>The prescription of clozapine for older Asian schizophrenia inpatients has remained at a stable level during the past decade. The appropriateness of use of clozapine in China needs to be further explored.Yu-Tao XiangRobert W BuchananGabor S UngvariHelen F K ChiuKelly Y C LaiYou-Hong LiTian-Mei SiChuan-Yue WangEdwin H M LeeYan-Ling HeShu-Yu YangMian-Yoon ChongEe-Heok KuaSenta FujiiKang SimMichael K H YongJitendra K TrivediEun-Kee ChungPichet UdomratnKok-Yoon CheeNorman SartoriusChay-Hoon TanNaotaka ShinfukuPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 6, p e66154 (2013)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Yu-Tao Xiang
Robert W Buchanan
Gabor S Ungvari
Helen F K Chiu
Kelly Y C Lai
You-Hong Li
Tian-Mei Si
Chuan-Yue Wang
Edwin H M Lee
Yan-Ling He
Shu-Yu Yang
Mian-Yoon Chong
Ee-Heok Kua
Senta Fujii
Kang Sim
Michael K H Yong
Jitendra K Trivedi
Eun-Kee Chung
Pichet Udomratn
Kok-Yoon Chee
Norman Sartorius
Chay-Hoon Tan
Naotaka Shinfuku
Use of clozapine in older Asian patients with schizophrenia between 2001 and 2009.
description <h4>Background</h4>To date there has been no large-scale international study that examined the use of clozapine in older patients with schizophrenia. This study examined the use of clozapine and its demographic and clinical correlates in older patients with schizophrenia in East Asia during the period between 2001 and 2009.<h4>Method</h4>Information on 1,157 hospitalized patients with schizophrenia aged 50 or older in five East Asian countries and territories (China, Hong Kong, Korea, Singapore and Taiwan) was extracted from the database of the Research on Asian Psychotropic Prescription Patterns (REAP) project. Socio-demographic and clinical characteristics and prescription of psychotropic medications were recorded.<h4>Results</h4>Clozapine was prescribed for 20.6% of the pooled sample; 19.0% in 2001, 19.4% in 2004 and 22.9% in 2009. Multiple logistic regression analysis of the whole sample revealed that patients taking clozapine had a longer duration of illness, more negative symptoms and were less likely to receive first generation antipsychotic and anticholinergic drugs, but more likely to report weight gain compared to those not receiving clozapine. Compared to those in other sites, older patients in China were more likely to receive clozapine.<h4>Conclusions</h4>The prescription of clozapine for older Asian schizophrenia inpatients has remained at a stable level during the past decade. The appropriateness of use of clozapine in China needs to be further explored.
format article
author Yu-Tao Xiang
Robert W Buchanan
Gabor S Ungvari
Helen F K Chiu
Kelly Y C Lai
You-Hong Li
Tian-Mei Si
Chuan-Yue Wang
Edwin H M Lee
Yan-Ling He
Shu-Yu Yang
Mian-Yoon Chong
Ee-Heok Kua
Senta Fujii
Kang Sim
Michael K H Yong
Jitendra K Trivedi
Eun-Kee Chung
Pichet Udomratn
Kok-Yoon Chee
Norman Sartorius
Chay-Hoon Tan
Naotaka Shinfuku
author_facet Yu-Tao Xiang
Robert W Buchanan
Gabor S Ungvari
Helen F K Chiu
Kelly Y C Lai
You-Hong Li
Tian-Mei Si
Chuan-Yue Wang
Edwin H M Lee
Yan-Ling He
Shu-Yu Yang
Mian-Yoon Chong
Ee-Heok Kua
Senta Fujii
Kang Sim
Michael K H Yong
Jitendra K Trivedi
Eun-Kee Chung
Pichet Udomratn
Kok-Yoon Chee
Norman Sartorius
Chay-Hoon Tan
Naotaka Shinfuku
author_sort Yu-Tao Xiang
title Use of clozapine in older Asian patients with schizophrenia between 2001 and 2009.
title_short Use of clozapine in older Asian patients with schizophrenia between 2001 and 2009.
title_full Use of clozapine in older Asian patients with schizophrenia between 2001 and 2009.
title_fullStr Use of clozapine in older Asian patients with schizophrenia between 2001 and 2009.
title_full_unstemmed Use of clozapine in older Asian patients with schizophrenia between 2001 and 2009.
title_sort use of clozapine in older asian patients with schizophrenia between 2001 and 2009.
publisher Public Library of Science (PLoS)
publishDate 2013
url https://doaj.org/article/bad5a5c5f78b4380b3fe7bce7d16d8b0
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