Epidemiology of treated attention-deficit/hyperactivity disorder (ADHD) across the lifespan in Taiwan: a nationwide population-based longitudinal study.

<h4>Objectives</h4>We used insurance claims of a nationally representative population-based cohort to assess the longitudinal treated prevalence and incidence of attention-deficit/hyperactivity disorder (ADHD) in children, adolescents and adults.<h4>Methods</h4>Participants w...

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Autores principales:	Charles Lung-Cheng Huang, Chin-Chen Chu, Tain-Junn Cheng, Shih-Feng Weng
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7534256ab8b741c9b99632c31a9585b4
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spelling	oai:doaj.org-article:7534256ab8b741c9b99632c31a9585b42021-11-18T08:23:15ZEpidemiology of treated attention-deficit/hyperactivity disorder (ADHD) across the lifespan in Taiwan: a nationwide population-based longitudinal study.1932-620310.1371/journal.pone.0095014https://doaj.org/article/7534256ab8b741c9b99632c31a9585b42014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24736469/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Objectives</h4>We used insurance claims of a nationally representative population-based cohort to assess the longitudinal treated prevalence and incidence of attention-deficit/hyperactivity disorder (ADHD) in children, adolescents and adults.<h4>Methods</h4>Participants were identified from among National Health Insurance enrollees in Taiwan from 1999 to 2005. We identified study subjects who had at least one service claim during these years with a principal diagnosis of ADHD. A total of 6,173 patients were recorded in the treated ADHD cohort during the 6-year study.<h4>Results</h4>There was a significant increase in the treated prevalence rate of ADHD during the study period, from 64.65 per 100,000 in 2000 to 145.40 per 100,000 in 2005 (p = .001). An increase in the treated incidence rate of ADHD, from 44.67 per 100,000 in 2000 to 81.20 per 100,000 in 2005, was also observed (p = .013). However, the treated prevalence of ADHD was still lower than that of the community data in Taiwan. The peak treated prevalence of ADHD was at age 7-12 years for both males and females, and the peak treated incidence of ADHD was at age 0-6 for females and age 7-12 for males. Overall, the treated incidence and prevalence rates dropped abruptly after age 13-18 (both p<.001) for males and females (p<.001 for both). Male vs. female ratios of treated prevalence and incidence were both above 1 before age 25-30 years, but below 1 thereafter.<h4>Conclusion</h4>Although an increasing number of people with ADHD sought treatment during 1999-2005 in Taiwan, the treated prevalence of ADHD was still lower than that of the community data. The treated incidence and prevalence of ADHD fell dramatically after age 13-18. However, more women than men sought treatment in adulthood. There may be under-diagnosis and under-treatment of ADHD, especially among females and adults.Charles Lung-Cheng HuangChin-Chen ChuTain-Junn ChengShih-Feng WengPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 4, p e95014 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Charles Lung-Cheng Huang Chin-Chen Chu Tain-Junn Cheng Shih-Feng Weng Epidemiology of treated attention-deficit/hyperactivity disorder (ADHD) across the lifespan in Taiwan: a nationwide population-based longitudinal study.
description	<h4>Objectives</h4>We used insurance claims of a nationally representative population-based cohort to assess the longitudinal treated prevalence and incidence of attention-deficit/hyperactivity disorder (ADHD) in children, adolescents and adults.<h4>Methods</h4>Participants were identified from among National Health Insurance enrollees in Taiwan from 1999 to 2005. We identified study subjects who had at least one service claim during these years with a principal diagnosis of ADHD. A total of 6,173 patients were recorded in the treated ADHD cohort during the 6-year study.<h4>Results</h4>There was a significant increase in the treated prevalence rate of ADHD during the study period, from 64.65 per 100,000 in 2000 to 145.40 per 100,000 in 2005 (p = .001). An increase in the treated incidence rate of ADHD, from 44.67 per 100,000 in 2000 to 81.20 per 100,000 in 2005, was also observed (p = .013). However, the treated prevalence of ADHD was still lower than that of the community data in Taiwan. The peak treated prevalence of ADHD was at age 7-12 years for both males and females, and the peak treated incidence of ADHD was at age 0-6 for females and age 7-12 for males. Overall, the treated incidence and prevalence rates dropped abruptly after age 13-18 (both p<.001) for males and females (p<.001 for both). Male vs. female ratios of treated prevalence and incidence were both above 1 before age 25-30 years, but below 1 thereafter.<h4>Conclusion</h4>Although an increasing number of people with ADHD sought treatment during 1999-2005 in Taiwan, the treated prevalence of ADHD was still lower than that of the community data. The treated incidence and prevalence of ADHD fell dramatically after age 13-18. However, more women than men sought treatment in adulthood. There may be under-diagnosis and under-treatment of ADHD, especially among females and adults.
format	article
author	Charles Lung-Cheng Huang Chin-Chen Chu Tain-Junn Cheng Shih-Feng Weng
author_facet	Charles Lung-Cheng Huang Chin-Chen Chu Tain-Junn Cheng Shih-Feng Weng
author_sort	Charles Lung-Cheng Huang
title	Epidemiology of treated attention-deficit/hyperactivity disorder (ADHD) across the lifespan in Taiwan: a nationwide population-based longitudinal study.
title_short	Epidemiology of treated attention-deficit/hyperactivity disorder (ADHD) across the lifespan in Taiwan: a nationwide population-based longitudinal study.
title_full	Epidemiology of treated attention-deficit/hyperactivity disorder (ADHD) across the lifespan in Taiwan: a nationwide population-based longitudinal study.
title_fullStr	Epidemiology of treated attention-deficit/hyperactivity disorder (ADHD) across the lifespan in Taiwan: a nationwide population-based longitudinal study.
title_full_unstemmed	Epidemiology of treated attention-deficit/hyperactivity disorder (ADHD) across the lifespan in Taiwan: a nationwide population-based longitudinal study.
title_sort	epidemiology of treated attention-deficit/hyperactivity disorder (adhd) across the lifespan in taiwan: a nationwide population-based longitudinal study.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/7534256ab8b741c9b99632c31a9585b4
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Epidemiology of treated attention-deficit/hyperactivity disorder (ADHD) across the lifespan in Taiwan: a nationwide population-based longitudinal study.

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