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This study was designed to assess the effects of the North Carolina Improved Pregnancy Outcome (IPO) Project on use of prenatal care and incidence of low birthweight among its primarily Black registrants . Weighted least squares and stratified analysis procedures were used to scrutinize vital statistics data for subpopulation effects. IPO services were received by 51.7 per cent of Black women in the counties served by the project. For all Black registrants , the risk of receiving less than adequate prenatal care was 55.1 per cent of that of the comparison group. For Black teenage registrants , the risk was even less: 37.2 per cent of that of the comparison group. Nevertheless, no corresponding effects on the incidence of low birthweight could be detected. The evaluation methods used in this study can be applied to programs for mothers and infants in other locales to generate useful and practical information for state-level decision-making.

Evaluation of the effects of the North Carolina Improved Pregnancy Outcome Project: implications for state-level decision-making.