Proportion of selected congenital heart defects attributable to recognized risk factors

Details

• Alternative Title:
  Ann Epidemiol
• Personal Author:
  Simeone, Regina M. ; Tinker, Sarah C. ; Gilboa, Suzanne M. ; Agopian, A.J. ; Oster, Matthew E. ; Devine, Owen J. ; Honein, Margaret A.
• Corporate Authors:
  National Birth Defects Prevention Study
• Description:
  Purpose
  
  To assess the contribution of multiple risk factors for two congenital heart defects—hypoplastic left heart syndrome (HLHS) and tetralogy of Fallot (TOF).
  
  Methods
  
  We used data from the National Birth Defects Prevention Study (1997–2011) to estimate average adjusted population attributable fractions for several recognized risk factors, including maternal prepregnancy overweight–obesity, pregestational diabetes, age, and infant sex.
  
  Results
  
  There were 594 cases of isolated simple HLHS, 971 cases of isolated simple TOF, and 11,829 controls in the analysis. Overall, 57.0% of HLHS cases and 37.0% of TOF cases were estimated to be attributable to risk factors included in our model. Among modifiable HLHS risk factors, maternal pre-pregnancy overweight–obesity accounted for the largest proportion of cases (6.5%). Among modifiable TOF risk factors, maternal prepregnancy overweight–obesity and maternal age of 35 years or older accounted for the largest proportions of cases (8.3% and 4.3%, respectively).
  
  Conclusions
  
  Approximately half of HLHS cases and one-third of TOF cases were estimated to be attributable to risk factors included in our models. Interventions targeting factors that can be modified may help reduce the risk of HLHS and TOF development. Additional research into the etiology of HLHS and TOF may reveal other modifiable risk factors that might contribute to primary prevention efforts.
  
  
• Subjects:
  Case-Control Studies Female Humans Hypoplastic Left Heart Syndrome Infant, Newborn Logistic Models Male Risk Factors
• Source:
  Ann Epidemiol. 26(12):838-845.
• Pubmed ID:
  27894567
• Pubmed Central ID:
  PMC5215098
• Document Type:
  Journal Article
• Funding:
  CC999999/Intramural CDC HHS/United States
• Place as Subject:
  United States
• Volume:
  26
• Issue:
  12
• Collection(s):
  CDC Public Access
• Main Document Checksum:
  urn:sha-512:0013f710b5f830ca7e1706c438334b537cd5bb82cd3a569c73adb93a3e54473dd2c2b6cbf214cd88376363d2621a68429c209c3b633c3766c2e4e68f9e7ad934
• Download URL:
  https://stacks.cdc.gov/view/cdc/43705/cdc_43705_DS1.pdf
• File Type:
  [PDF - 126.09 KB ]