Breathing through the night: A meta-analysis of childhood asthma and obstructive sleep apnea in sleep-disordered contexts

Background: The study was to systematically evaluate the correlation between childhood asthma and obstructive sleep apnea (OSA). Methods: Several medical literature data bases were searched for studies published up to March 2025, by using the keywords “asthma” and “obstructive sleep apnea” and “child*.” We included observational studies, children with OSA diagnosed via polysomnography, clinical criteria, or validated tools; and asthma confirmed by physician diagnosis, medication use, or validated questionnaires and international code. Results: Eleven studies were included that covered populations in the United States, Europe, and Asia. The pooled odds ratio (OR) for the association between childhood asthma and OSA was 1.66 (95% confidence interval [CI], 1.21‐2.26; p < 0.001). Subgroup analysis by study design showed significant associations in cohort (OR 2.00 [95% CI, 1.35‐2.96]) and cross-sectional (OR 1.55 [95% CI, 0.69‐3.44]) but not in case-control studies (OR 0.85 [95% CI, 0.32‐2.28]). Geographically, the association was strongest in America (OR 1.99 [95% CI, 1.35‐2.96]) and Asia (OR 1.64 [95% CI, 1.19‐2.25]), with a nonsignificant trend in Europe (OR 0.91 [95% CI, 0.34‐2.42]). Sensitivity analyses directionally consistent with the results, and Egger’s test (p = .587) indicated no significant publication bias. Conclusion: Childhood asthma is significantly associated with an increased risk of OSA, with sleep disorders likely exacerbating this relationship. Integrated screening and management strategies are warranted, particularly in high-risk regions such as America and Asia.