[Participatory evaluation of the National Program for Vitamin A Supplementation in a municipality in Northeast Brazil].

This study aimed to evaluate the National Program for Vitamin A Supplementation in a municipality (county) in Northeast Brazil, with participation by the parents or guardians of children under five years of age. This was a cross-sectional, population-based study using both qualitative and quantitative approaches. A total of 657 interviews were performed, and the vitamin A doses recorded on the children's immunization cards were analyzed.