Optimizing accuracy of birth certificate data through a statewide quality improvement initiative in Illinois.

Objective: This study examines improvement in birth certificate accuracy during a statewide quality improvement initiative.

Study Design: Participating hospitals systematically sampled 10 delivery medical records per month and compared them to corresponding birth certificates for accuracy. Accuracy was computed before implementing the initiative (Aug-Oct 2014), end of phase 1 (July 2015) and end of phase 2 (Nov-Dec 2015).