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Bidirectional association between allergic rhinitis and attention-deficit/hyperactivity disorder: A systematic review
Jingxuan Wei1, Yang Li2, Qiuye Wu1
1Guangxi University of Chinese Medicine, Nanning, Guangxi Zhuang Autonomous Region, China.
Background:
This meta-epidemiological study seeks to further investigate the reciprocal relationship between allergic rhinitis (AR) and attention-deficit/hyperactivity disorder (ADHD).
Methods:
A comprehensive search of the databases was conducted up to March 3, 2024. We performed a synthesis and meta-analysis of odds ratios and their corresponding 95 % confidence intervals using Stata 14.0. Funnel plot analysis and Egger's regression test were utilized to assess potential publication bias.
Results:
Eighteen articles involving 4,289,444 participants were included. AR patients had an increased risk of developing ADHD (OR: 1.83; 95 % CI: 1.37-2.43), while ADHD patients were also more likely to have AR (OR: 1.38; 95 % CI: 1.11-1.72). Subgroup analysis indicated a predisposition of AR patients to autism spectrum disorder (OR: 1.34; 95 % CI: 0.86-1.0) and a higher risk of ADHD in cohort studies (OR: 1.90; 95 % CI: 1.26-2.88). Female AR patients were more likely to develop ADHD than males (OR: 1.86; 95 % CI: 1.43-2.43), and children aged ≤8 years with AR were at greater risk for ADHD compared to older children (OR: 1.75; 95 % CI: 1.14-2.69).
Conclusions:
This meta-analysis confirms a bidirectional association between AR and ADHD, indicating that they are mutually independent risk factors.
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