Measuring acceptances in a family planning program: the decomposition of rates by eligibility criteria

Acceptance rates in family planning programs can be broken into components useful in analyzing programs and in evaluating success. In almost any program some couples can be defined as "ineligible" on the basis of alternative criteria. (Sterilized couples are an obvious example.) Then, the total acceptance rate can be initially separated into two components-the proportion eligible and the acceptance rate among the eligible. If some of those initially defined as ineligible become acceptors, there is a third component-the ratio of all acceptances to acceptances among the eligible only. These various components can be used to analyze the basis for varying acceptance rates between different strata of a population.