ArticleBirth defects research2025
Patterns of Co-Occurring Birth Defects in Chinese Infants With Congenital Diaphragmatic Hernia: A National Hospital-Based Surveillance Study.
Article in Birth defects research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundThe landscape of co-occurring birth defects among infants with congenital diaphragmatic hernia (CDH) remains underexplored.
aimsThis study aims to elucidate the complex patterns of co-occurring defects in Chinese population. MATERIALS AND
methodsWe analyzed cases from the Chinese Birth Defects Monitoring Network (2007-2019) with CDH that presented along with at least one additional defect but without a syndromic diagnosis. Adjusted observed-to-expected prevalence (O/E) ratios were calculated for all two- to five-way combinations to discern patterns of co-occurring defects with CDH more frequently than expected by chance.
resultsAmong 1235 CDH cases associated with other birth defects, the top 30 combinations with the highest adjusted O/E ratios included musculoskeletal, cardiovascular, central nervous system, facial, and renal defects. Cardiovascular defects were involved in 76.7% of the top combinations, followed by central nervous system (23.3%) and musculoskeletal defects (20.0%). The combination of polydactyly and syndactyly anomalies exhibited the highest adjusted O/E ratio of 5963.37 (95% confidence interval: 5960.00-5966.73). DISCUSSION: The relationship between musculoskeletal malformation and CDH may be explained from the aspects of epidemiology, embryology and pathogenesis. And mechanisms for the co-occurrence of cardiovascular and CDH may involve disruption of common pathways.
conclusionOur analyses describe the co-occurrence patterns of birth defects in CDH infants and reveal several noteworthy patterns. The observed patterns can guide further study and enhance our comprehension understanding of the developmental mechanisms underlying multiple defects.
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