The National Birth Defects Prevention Study: A review of the methods.

ABSTRACT:

Background

The National Birth Defects Prevention Study (NBDPS) is a large population-based multicenter case-control study of major birth defects in the United States.

Methods

Data collection took place from 1998 through 2013 on pregnancies ending between October 1997 and December 2011. Cases could be live born, stillborn, or induced terminations, and were identified from birth defects surveillance programs in Arkansas, California, Georgia, Iowa, Massachusetts, New Jersey, New York, North Carolina, Texas, and Utah. Controls were live born infants without major birth defects identified from the same geographical regions and time periods as cases by means of either vital records or birth hospitals. Computer-assisted telephone interviews were completed with women between 6 weeks

SUBMITTER: Reefhuis J 

PROVIDER: S-EPMC4558899 | biostudies-literature | 2015 Aug

REPOSITORIES: biostudies-literature