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Medicine (Baltimore). 2015 Apr;94(16):e707. doi: 10.1097/MD.0000000000000707.

Enterovirus Encephalitis Increases the Risk of Attention Deficit Hyperactivity Disorder: A Taiwanese Population-based Case-control Study.

Author information

1
From the Department of Pediatrics, China Medical University Hospital (I-CC), Graduate Institute of Integrated Medicine, College of Chinese Medicine (I-CC), Management Office for Health Data, China Medical University Hospital (C-CL), College of Medicine (C-CL), Graduate Institute of Clinical Medical Science and School of Medicine, College of Medicine (C-HK), Department of Nuclear Medicine and PET Center, China Medical University Hospital, Taichung, Taiwan (C-HK).

Abstract

Enterovirus (EV) infection is a major public health issue throughout the world with potential neurological complications. This study evaluated the relationship between attention deficit hyperactivity disorder (ADHD) and EV encephalitis in children.Data of reimbursement claims from the National Health Insurance Research Database of Taiwan were used in a population-based case-control design. The study comprised 2646 children with ADHD who were matched according to sex, age, urbanization level of residence, parental occupation, and baseline year, to people without ADHD at a ratio of 1:10. The index date of the ADHD group was the ADHD date of diagnosis. Histories of EV infections before the index dates were collected and recategorized according to the severity of infection.Compared with children without EV infection, the children with mild EV infection had a 1.16-fold increased risk of ADHD (odds ratio [OR] = 1.16, 95% confidence interval [CI] = 1.07-1.26), and the children with severe EV infection had a greater risk of ADHD (OR = 2.82, 95% CI = 1.05-7.57). The results also revealed a significant correlation between ADHD and the severity of EV infection (P for trend = 0.0001).Patients with EV encephalitis have an increased risk of developing ADHD. Although most EV encephalitis in children has a favorable prognosis, it may be associated with significant long-term neurological sequelae, even in children considered fully recovered at discharge. Neuropsychological testing should be recommended for survivors of childhood EV encephalitis. The causative factors between EV encephalitis and the increased risk of ADHD require further investigation.

PMID:
25906098
PMCID:
PMC4602682
DOI:
10.1097/MD.0000000000000707
[Indexed for MEDLINE]
Free PMC Article

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