Assessing the quality of medical and health data from the 2003 birth certificate revision: results from two states.

A primary goal of the 2003 revision of the U.S. Standard Certificate of Live Birth was to improve data quality, in part by improving data sources, definitions, and instructions. This report evaluates the quality of selected medical and health data from the 2003 revision of the birth certificate by comparing birth certificate data with information abstracted from hospital medical records.A random sample of records for 600 births that occurred in...