Behavioral factors contributing to abortion deaths: a new approach to mortality studies.

One hundred six women were reported to have died from abortions (55 legal, 10 illegal, and 41 spontaneous) in the United States from 1975 through 1977. In reviewing these deaths, the authors developed a new approach to mortality studies. A catalogue was compiled of behavioral factors (including actions by physicians, patients, communities, and institutions) that in the authors' judgment increased the risk of death from abortion. The proportion of abortion deaths to which each behavioral risk factor contributed was determined. Of the 199 different behavioral factors, 5 contributed to more than 10% of legal abortion deaths, 5 to more than 10% of illegal abortion deaths, and 3 to more than 10% of spontaneous abortion deaths. The most frequent factors involved were delay in obtaining a legal abortion until 13 weeks' gestation or later, incomplete abortion, and inappropriate choice of antibiotics for septic abortion. Assessing the proportion of abortion deaths to which each factor contributed can help identify which factors deserve priority in prevention.