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A Multifactorial Pregnancy Outcome Index

Deprtment of Obstetrics and Gynecology, School of Medicine, University of South Dakota, Yankton, South Dakota.

In the present study, pregnancy outcome is defined as a combination of seven relatively independent factors. Outcome scores were assigned to each subject on the basis of the number of pregnancy and labor-related factors that were satisfied. An outcome index of seven indicated an excellent outcome, and an index value of zero indicated the poorest outcome. Clinical data for 821 subjects, including a selected sample of 102 high-risk patients, were recorded using the Hollister Record System forms. The contribution of each of these factors to the overall outcome was estimated by statistical analysis of all data from the 821 subjects. Validation of this multifactor index of pregnancy outcome was obtained by correlation analysis with established factors such as the number of previous term pregnancies, live births, abortions, and present preexisting risk factors. In addition, retrospective analyses relating pregnancy outcome index with maternal serum unconjugated estriol, zinc, and copper obtained from 102 high-risk patients, revealed that copper level at all third trimester gestations was systematically and significantly related to outcome level while no such relationship emerged from comparisons with estriol and zinc. Good and poor outcomes were related to low and high copper values, respectively. The results of this exploratory study suggest that maternal serum copper levels may be an alternative predictor of pregnancy outcome.