Correlation between epilepsy and attention deficit hyperactivity disorder: a population-based cohort study.

BACKGROUND: This study presents an evaluation of the bidirectional correlation between attention deficit hyperactivity disorder (ADHD) and epilepsy using 2 cohorts from the same population database. METHODS: We used data from the Taiwan National Health Insurance Research Database to establish 2 sepa...

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Main Authors: I-Ching Chou, Yu-Tzu Chang, Zheng-Nan Chin, Chih-Hsin Muo, Fung-Chang Sung, Huang-Tsung Kuo, Chang-Hai Tsai, Chia-Hung Kao
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2013-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3590288?pdf=render
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author I-Ching Chou
Yu-Tzu Chang
Zheng-Nan Chin
Chih-Hsin Muo
Fung-Chang Sung
Huang-Tsung Kuo
Chang-Hai Tsai
Chia-Hung Kao
author_facet I-Ching Chou
Yu-Tzu Chang
Zheng-Nan Chin
Chih-Hsin Muo
Fung-Chang Sung
Huang-Tsung Kuo
Chang-Hai Tsai
Chia-Hung Kao
author_sort I-Ching Chou
collection DOAJ
description BACKGROUND: This study presents an evaluation of the bidirectional correlation between attention deficit hyperactivity disorder (ADHD) and epilepsy using 2 cohorts from the same population database. METHODS: We used data from the Taiwan National Health Insurance Research Database to establish 2 separate cohort studies with participants <19 years old. We subdivided Cohort 1 in 2 groups: (1) 2468 patients initially diagnosed with epilepsy during the period 1999-2008, and (2) 9810 randomly selected sex- and age-matched non-epileptic controls. We subdivided Cohort 2 into 2 groups: (1) 3664 patients with newly diagnosed ADHD and (2) 14 522 sex- and age-matched non-ADHD patients. We evaluated the risk of subsequent ADHD in relationship to epilepsy and vice versa in the 2 cohorts at the end of 2008. RESULTS: The ADHD incidence in Cohort 1 was 7.76 in patients with epilepsy and 3.22 in those without epilepsy (per 1000 person-years) after a median follow-up of 7-7.5 years. The adjusted hazard ratio (HR) for ADHD was 2.54 (95% CI 2.02-3.18) in the epilepsy group compared to the non-epilepsy group. In Cohort 2, the incidence of epilepsy was 3.24 in patients with ADHD and 0.78 in those without ADHD (per 1000 person-years) after a median follow-up of 3-3.5 years and an HR of 3.94 (95% CI 2.58-6.03). CONCLUSION: This study shows a bidirectional association between ADHD and epilepsy in the 2 cohort studies. Causative factors may be common between these 2 disorders, leading to a cascade of transcriptional changes in the brain that alter behavior or cognition prior to seizures.
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spelling doaj.art-a48d94e75c30484bba22f176f9bdb9322022-12-21T18:38:54ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-0183e5792610.1371/journal.pone.0057926Correlation between epilepsy and attention deficit hyperactivity disorder: a population-based cohort study.I-Ching ChouYu-Tzu ChangZheng-Nan ChinChih-Hsin MuoFung-Chang SungHuang-Tsung KuoChang-Hai TsaiChia-Hung KaoBACKGROUND: This study presents an evaluation of the bidirectional correlation between attention deficit hyperactivity disorder (ADHD) and epilepsy using 2 cohorts from the same population database. METHODS: We used data from the Taiwan National Health Insurance Research Database to establish 2 separate cohort studies with participants <19 years old. We subdivided Cohort 1 in 2 groups: (1) 2468 patients initially diagnosed with epilepsy during the period 1999-2008, and (2) 9810 randomly selected sex- and age-matched non-epileptic controls. We subdivided Cohort 2 into 2 groups: (1) 3664 patients with newly diagnosed ADHD and (2) 14 522 sex- and age-matched non-ADHD patients. We evaluated the risk of subsequent ADHD in relationship to epilepsy and vice versa in the 2 cohorts at the end of 2008. RESULTS: The ADHD incidence in Cohort 1 was 7.76 in patients with epilepsy and 3.22 in those without epilepsy (per 1000 person-years) after a median follow-up of 7-7.5 years. The adjusted hazard ratio (HR) for ADHD was 2.54 (95% CI 2.02-3.18) in the epilepsy group compared to the non-epilepsy group. In Cohort 2, the incidence of epilepsy was 3.24 in patients with ADHD and 0.78 in those without ADHD (per 1000 person-years) after a median follow-up of 3-3.5 years and an HR of 3.94 (95% CI 2.58-6.03). CONCLUSION: This study shows a bidirectional association between ADHD and epilepsy in the 2 cohort studies. Causative factors may be common between these 2 disorders, leading to a cascade of transcriptional changes in the brain that alter behavior or cognition prior to seizures.http://europepmc.org/articles/PMC3590288?pdf=render
spellingShingle I-Ching Chou
Yu-Tzu Chang
Zheng-Nan Chin
Chih-Hsin Muo
Fung-Chang Sung
Huang-Tsung Kuo
Chang-Hai Tsai
Chia-Hung Kao
Correlation between epilepsy and attention deficit hyperactivity disorder: a population-based cohort study.
PLoS ONE
title Correlation between epilepsy and attention deficit hyperactivity disorder: a population-based cohort study.
title_full Correlation between epilepsy and attention deficit hyperactivity disorder: a population-based cohort study.
title_fullStr Correlation between epilepsy and attention deficit hyperactivity disorder: a population-based cohort study.
title_full_unstemmed Correlation between epilepsy and attention deficit hyperactivity disorder: a population-based cohort study.
title_short Correlation between epilepsy and attention deficit hyperactivity disorder: a population-based cohort study.
title_sort correlation between epilepsy and attention deficit hyperactivity disorder a population based cohort study
url http://europepmc.org/articles/PMC3590288?pdf=render
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