Time to relapse and remission of bipolar disorder: findings from a 1-year prospective study in Thailand

Thawatchai Leelahanaj,1 Ronnachai Kongsakon,2 Somrak Choovanichvong,3 Sookjaroen Tangwongchai,4 Suchat Paholpak,5 Thoranin Kongsuk,6 Manit Srisurapanont7 For the Thai Bipolar Registry Study Group 1Department of Psychiatry and Neurology, Phramongkutklao Hospital, Bangkok, Thailand; 2Department of Psy...

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Autores principales:	Leelahanaj T, Kongsakon R, Choovanichvong S, Tangwongchai S, Paholpak S, Kongsuk T, Srisurapanont M
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2013
Materias:	Neurosciences. Biological psychiatry. Neuropsychiatry RC321-571 Neurology. Diseases of the nervous system RC346-429
Acceso en línea:	https://doaj.org/article/2f3e201e65f042af944a98412f122fc2
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spelling	oai:doaj.org-article:2f3e201e65f042af944a98412f122fc22021-12-02T02:03:18ZTime to relapse and remission of bipolar disorder: findings from a 1-year prospective study in Thailand1176-63281178-2021https://doaj.org/article/2f3e201e65f042af944a98412f122fc22013-08-01T00:00:00Zhttp://www.dovepress.com/time-to-relapse-and-remission-of-bipolar-disorder-findings-from-a-1-ye-a14132https://doaj.org/toc/1176-6328https://doaj.org/toc/1178-2021Thawatchai Leelahanaj,1 Ronnachai Kongsakon,2 Somrak Choovanichvong,3 Sookjaroen Tangwongchai,4 Suchat Paholpak,5 Thoranin Kongsuk,6 Manit Srisurapanont7 For the Thai Bipolar Registry Study Group 1Department of Psychiatry and Neurology, Phramongkutklao Hospital, Bangkok, Thailand; 2Department of Psychiatry, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand; 3Srithanya Hospital, Nonthaburi, Thailand; 4Department of Psychiatry, Chulalongkorn University, Bangkok, Thailand; 5Department of Psychiatry, Khon Kaen University, Khon Kaen, Thailand; 6Prasrimahabhodi Psychiatric Hospital, Ubon Ratchathani, Thailand; 7Department of Psychiatry, Chiang Mai University, Chiang Mai, Thailand Background and methods: This study aimed to determine time to relapse and remission of mood episodes in Thai patients with bipolar disorder (BD). The Thai Bipolar Disorder Registry was a multicenter, prospective, naturalistic, observational study conducted in Thailand. Participants were adult inpatients or outpatients with Diagnostic and Statistical Manual of Mental Disorders bipolar disorder. The diagnosis of bipolar disorder, current psychiatric comorbidity, mood relapse, and mood remission were determined by using the Mini International Neuropsychiatric Interview. Relapse and remission were assessed every 2 months. Results: Of 424 BD participants, 404 (95.3%) were BD I, and 258 (60.8%) were female. At entry, 260 (61.3%) had recovered, and 49 (11.6%) were recovering. During 1-year follow-up (381.7 person-years), 92 participants (21.7%) had 119 relapses or 0.31 (95% confidence interval 0.25–0.35) episodes per person-year. Among 119 relapses, 58 (48.7%), 39 (32.7%), and 21 (17.6%) of them were depressive, hypomanic, and manic episodes, respectively. Using the Kaplan–Meier method, we found that 25% of the participants relapsed in 361 days. Of the 400 participants who reached remission, 113 (28.2%) had mood relapses. Of 173 mood events accountable for remission analysis, the median time to remission was 67.5 days (72.5 days for depressive episodes versus 58.0 days for manic episodes, log rank P = 0.014). Conclusions: The 1-year relapse rate in Thai patients with BD was 21.7% or 0.31 episodes per person-year. About one-fifth of recovered patients had mood relapses within 371 days. On average, a mood episode would remit in 67.5 days. Keywords: bipolar disorder, course, outcome, relapse, remission, ThaiLeelahanaj TKongsakon RChoovanichvong STangwongchai SPaholpak SKongsuk TSrisurapanont MDove Medical PressarticleNeurosciences. Biological psychiatry. NeuropsychiatryRC321-571Neurology. Diseases of the nervous systemRC346-429ENNeuropsychiatric Disease and Treatment, Vol 2013, Iss default, Pp 1249-1256 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Neurosciences. Biological psychiatry. Neuropsychiatry RC321-571 Neurology. Diseases of the nervous system RC346-429
spellingShingle	Neurosciences. Biological psychiatry. Neuropsychiatry RC321-571 Neurology. Diseases of the nervous system RC346-429 Leelahanaj T Kongsakon R Choovanichvong S Tangwongchai S Paholpak S Kongsuk T Srisurapanont M Time to relapse and remission of bipolar disorder: findings from a 1-year prospective study in Thailand
description	Thawatchai Leelahanaj,1 Ronnachai Kongsakon,2 Somrak Choovanichvong,3 Sookjaroen Tangwongchai,4 Suchat Paholpak,5 Thoranin Kongsuk,6 Manit Srisurapanont7 For the Thai Bipolar Registry Study Group 1Department of Psychiatry and Neurology, Phramongkutklao Hospital, Bangkok, Thailand; 2Department of Psychiatry, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand; 3Srithanya Hospital, Nonthaburi, Thailand; 4Department of Psychiatry, Chulalongkorn University, Bangkok, Thailand; 5Department of Psychiatry, Khon Kaen University, Khon Kaen, Thailand; 6Prasrimahabhodi Psychiatric Hospital, Ubon Ratchathani, Thailand; 7Department of Psychiatry, Chiang Mai University, Chiang Mai, Thailand Background and methods: This study aimed to determine time to relapse and remission of mood episodes in Thai patients with bipolar disorder (BD). The Thai Bipolar Disorder Registry was a multicenter, prospective, naturalistic, observational study conducted in Thailand. Participants were adult inpatients or outpatients with Diagnostic and Statistical Manual of Mental Disorders bipolar disorder. The diagnosis of bipolar disorder, current psychiatric comorbidity, mood relapse, and mood remission were determined by using the Mini International Neuropsychiatric Interview. Relapse and remission were assessed every 2 months. Results: Of 424 BD participants, 404 (95.3%) were BD I, and 258 (60.8%) were female. At entry, 260 (61.3%) had recovered, and 49 (11.6%) were recovering. During 1-year follow-up (381.7 person-years), 92 participants (21.7%) had 119 relapses or 0.31 (95% confidence interval 0.25–0.35) episodes per person-year. Among 119 relapses, 58 (48.7%), 39 (32.7%), and 21 (17.6%) of them were depressive, hypomanic, and manic episodes, respectively. Using the Kaplan–Meier method, we found that 25% of the participants relapsed in 361 days. Of the 400 participants who reached remission, 113 (28.2%) had mood relapses. Of 173 mood events accountable for remission analysis, the median time to remission was 67.5 days (72.5 days for depressive episodes versus 58.0 days for manic episodes, log rank P = 0.014). Conclusions: The 1-year relapse rate in Thai patients with BD was 21.7% or 0.31 episodes per person-year. About one-fifth of recovered patients had mood relapses within 371 days. On average, a mood episode would remit in 67.5 days. Keywords: bipolar disorder, course, outcome, relapse, remission, Thai
format	article
author	Leelahanaj T Kongsakon R Choovanichvong S Tangwongchai S Paholpak S Kongsuk T Srisurapanont M
author_facet	Leelahanaj T Kongsakon R Choovanichvong S Tangwongchai S Paholpak S Kongsuk T Srisurapanont M
author_sort	Leelahanaj T
title	Time to relapse and remission of bipolar disorder: findings from a 1-year prospective study in Thailand
title_short	Time to relapse and remission of bipolar disorder: findings from a 1-year prospective study in Thailand
title_full	Time to relapse and remission of bipolar disorder: findings from a 1-year prospective study in Thailand
title_fullStr	Time to relapse and remission of bipolar disorder: findings from a 1-year prospective study in Thailand
title_full_unstemmed	Time to relapse and remission of bipolar disorder: findings from a 1-year prospective study in Thailand
title_sort	time to relapse and remission of bipolar disorder: findings from a 1-year prospective study in thailand
publisher	Dove Medical Press
publishDate	2013
url	https://doaj.org/article/2f3e201e65f042af944a98412f122fc2
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_version_	1718402700883787776

Time to relapse and remission of bipolar disorder: findings from a 1-year prospective study in Thailand

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