Jarod P McAteer1, Avram Hecht2, Anneclaire J De Roos3, Adam B Goldin4. 1. Division of Pediatric General and Thoracic Surgery, Seattle Children's Hospital, Seattle, WA 98105; Department of Surgery University of Washington School of Medicine, Seattle, WA 98105. Electronic address: jarodmc@uw.edu. 2. Department of Otolaryngology University of California San Diego, San Diego, CA 92103. 3. Department of Environmental and Occupational Health Drexel University School of Public Health, Philadelphia, PA 19102. 4. Division of Pediatric General and Thoracic Surgery, Seattle Children's Hospital, Seattle, WA 98105; Department of Surgery University of Washington School of Medicine, Seattle, WA 98105.
Abstract
PURPOSE: Maternal factors contributing to the etiology of congenital diaphragmatic hernia (CDH) remain unclear. We hypothesized that specific maternal medical conditions (pregestational diabetes, hypertension), and behaviors (alcohol, tobacco) would be associated with CDH. METHODS: We conducted a population-based case-control study using Washington State birth certificates linked to hospital discharge records (1987-2009). We identified all infants with CDH (n=492). Controls were randomly selected among non-CDH infants. Maternal data were extracted from the birth record. Logistic regression was used to adjust for covariates. RESULTS: Cases and controls were generally similar regarding demographics, although CDH infants were more likely to be male than controls (58.5% vs. 52.5%). Isolated and complex (multiple-anomaly) CDH had similar characteristics. Each of the exposures of interest was more common among case mothers than among control mothers. In univariate analysis, alcohol use, hypertension, and pregestational diabetes were each significantly associated with the outcome. After multivariate adjustment, only alcohol use (OR=3.65, p=0.01) and pregestational diabetes (OR=12.53, p=0.003) maintained significance. Results were similar for both isolated and complex CDH. CONCLUSIONS: Maternal pregestational diabetes and alcohol use are significantly associated with occurrence of CDH in infants. These are important modifiable risk factors to consider with regard to efforts seeking to impact the incidence of CDH.
PURPOSE: Maternal factors contributing to the etiology of congenital diaphragmatic hernia (CDH) remain unclear. We hypothesized that specific maternal medical conditions (pregestational diabetes, hypertension), and behaviors (alcohol, tobacco) would be associated with CDH. METHODS: We conducted a population-based case-control study using Washington State birth certificates linked to hospital discharge records (1987-2009). We identified all infants with CDH (n=492). Controls were randomly selected among non-CDH infants. Maternal data were extracted from the birth record. Logistic regression was used to adjust for covariates. RESULTS: Cases and controls were generally similar regarding demographics, although CDH infants were more likely to be male than controls (58.5% vs. 52.5%). Isolated and complex (multiple-anomaly) CDH had similar characteristics. Each of the exposures of interest was more common among case mothers than among control mothers. In univariate analysis, alcohol use, hypertension, and pregestational diabetes were each significantly associated with the outcome. After multivariate adjustment, only alcohol use (OR=3.65, p=0.01) and pregestational diabetes (OR=12.53, p=0.003) maintained significance. Results were similar for both isolated and complex CDH. CONCLUSIONS: Maternal pregestational diabetes and alcohol use are significantly associated with occurrence of CDH in infants. These are important modifiable risk factors to consider with regard to efforts seeking to impact the incidence of CDH.
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