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Meta-analysis found that studies may have overestimated Caesarean section risks for attention-deficit hyperactivity disorder by ignoring confounding factors.
- Source :
- Acta Paediatrica; Feb2020, Vol. 109 Issue 2, p258-265, 8p
- Publication Year :
- 2020
-
Abstract
- <bold>Aim: </bold>Epidemiological studies on associations between Caesarean sections (C-sections) and attention-deficit hyperactivity disorder (ADHD) have been inconsistent, and we performed a meta-analysis.<bold>Methods: </bold>We systematically searched PubMed and Embase to December 2018 and included nine hospital-based and population registry studies published in 2011-2018. These covered a total study cohort of more than 2.5 million people in eight countries: Australia, Brazil, Denmark, Finland, Germany, Sweden, Turkey and the UK. The analysis provided summary odds ratios (ORs) and 95% confidence intervals (CI) while taking heterogeneity into account.<bold>Results: </bold>We found that that C-sections were associated with a small increase in the risk of ADHD (OR 1.14, 95% CI 1.11, 1.17, I2 0%) in offspring. In subgroup analyses, the association remained for both infants born after elective C-sections (OR, 1.15, 1.11, 1.19, I2 0%) and emergency C-sections (OR, 1.13, 1.1, 1.17, I2 45.4%). However, these were only marginally significant when we pooled data from siblings from other pregnancies (OR, 1.06, 1.00-1.13, I2 0%), implying that the association was due to confounding.<bold>Conclusion: </bold>The statistically significant association between C-sections and ADHD in children can be partially explained by unmeasured confounding. Further research controlling for important confounders is required before firm conclusions can be drawn. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 08035253
- Volume :
- 109
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Acta Paediatrica
- Publication Type :
- Academic Journal
- Accession number :
- 141189687
- Full Text :
- https://doi.org/10.1111/apa.14994