AI Article Synopsis
- The study examines the geographical variations in the prevalence of esophageal atresia (EA) among infants over a decade (1998-2007) across different regions participating in an international birth defects surveillance program.
- A total of 2943 cases of EA were recorded, with an average prevalence of 2.44 cases per 10,000 births, and most diagnosed cases were live births (93.8%).
- The results indicate that the observed differences in prevalence might be linked to population demographics or reporting practices rather than actual differences in the occurrence of EA.
Article Abstract
Background: The prevalence of esophageal atresia (EA) has been shown to vary across different geographical settings. Investigation of geographical differences may provide an insight into the underlying etiology of EA.
Methods: The study population comprised infants diagnosed with EA during 1998 to 2007 from 18 of the 46 birth defects surveillance programs, members of the International Clearinghouse for Birth Defects Surveillance and Research. Total prevalence per 10,000 births for EA was defined as the total number of cases in live births, stillbirths, and elective termination of pregnancy for fetal anomaly (ETOPFA) divided by the total number of all births in the population.
Results: Among the participating programs, a total of 2943 cases of EA were diagnosed with an average prevalence of 2.44 (95% confidence interval [CI], 2.35-2.53) per 10,000 births, ranging between 1.77 and 3.68 per 10,000 births. Of all infants diagnosed with EA, 2761 (93.8%) were live births, 82 (2.8%) stillbirths, 89 (3.0%) ETOPFA, and 11 (0.4%) had unknown outcomes. The majority of cases (2020, 68.6%), had a reported EA with fistula, 749 (25.5%) were without fistula, and 174 (5.9%) were registered with an unspecified code.
Conclusions: On average, EA affected 1 in 4099 births (95% CI, 1 in 3954-4251 births) with prevalence varying across different geographical settings, but relatively consistent over time and comparable between surveillance programs. Findings suggest that differences in the prevalence observed among programs are likely to be attributable to variability in population ethnic compositions or issues in reporting or registration procedures of EA, rather than a real risk occurrence difference. Birth Defects Research (Part A), 2012.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4467200 | PMC |
| http://dx.doi.org/10.1002/bdra.23067 | DOI Listing |
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