Assessing potential demand for Norplant implants in Sri Lanka.

This study assesses potential demand for Norplant implants using data from a population-based survey conducted in rural Sri Lanka. Overall, 35% of currently married non-sterilized women of childbearing age expressed interest in using the implants, 52% did not want to use the method, and 13% were unsure about using it. The demand was substantially higher (44% vs 28%) among younger age groups (less than 30 years) than among older age groups (30-44). The results showed that life-cycle variables (age, parity and marital duration) and fertility preference variables (desire for another child and desired birth-interval) were generally more important than socioeconomic variables in determining variations in potential demand for Norplant in Sri Lanka. Desired birth spacing was found to be a powerful indicator of the potential demand. The majority (85%) of respondents interested in using Norplant were also willing to absorb at least some of the cost of the implants. Among older age groups, those who were using modern temporary methods of contraception either exclusively or in combination with traditional methods had a higher demand for Norplant than non-users or exclusive users of traditional methods. For the younger women, however, potential demand did not vary significantly according to whether they were currently using a method or the type of method used.