III. BIRTH-INFANT DEATH MATCHING
III.A.1. AVSS infant death records are automatically matched with birth records when the death record is filed. Most birth and death records thus arrive at OVR already matched. However, the match rate is less than optimal since there is more delay in birth registration and the mobility of parents means the matching birth certificate may not be at the local level. Experience has shown that more complete matching can be obtained at the state level. Recently, OVR staff have begun entering the infant death certificates for non-participating LRDs, thus making possible the creation of a complete matched birth-infant death cohort.