Maternal Mortality During Hospital Admission for Delivery: A Retrospective Analysis Using a State-Maintained Database

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Abstract
This study reports the overall age- and race-specific delivery mortality ratios from January 1984 to December 1997 and medical and demographic risk factors associated with maternal death during hospital admission for delivery. We performed a retrospective case control study using patient records from a state-maintained anonymous database of all nonfederal Maryland hospitals that performed deliveries from 1984 to 1997. Variables studied included patient demographics and International Classification of Diseases, 9th Revision, Clinical Modification, diagnosis, and procedure codes. Mortality was the outcome variable. Of the 822,591 hospital admissions for delivery during the 14-yr study period, there were 135 deaths. The overall delivery mortality ratio was 16.4. The most common diagnoses associated with mortality during hospital admission for delivery included preeclampsia/eclampsia (22.2%), postpartum hemorrhage/obstetric shock (22.2%), pulmonary complications (14%), blood clot and/or amniotic embolism (8.1%), and anesthesia-related complications (5.2%). The identification of medical and demographic risk factors may have significant implications creating initiatives aimed at decreasing the public health burden associated with maternal mortality.