For the descriptive analyses, only children who met the age criteria and were permanent residents in one of the four villages over the entire measurement interval were included. An eligible non-participant was a child who was of the correct age and a resident in a village but who did not attend the supplementation centre during the interval. For the multivariate analyses, children who were eligible for at least 12 consecutive months during the interval were included. Attendance patterns are presented as both the percentage of children within each age interval who were non-participants and the percentage of days within a given measurement interval that participants attended. Participation was defined as attending the centre at least once during the interval.
Volume is presented as the average millilitres of supplement consumed per day during the interval.
Energy intakes are presented as mean kilocalories derived from the supplement per day. To investigate possible temporal changes over the duration of the study, analyses were also done by year. Patterns for children 1-3 years old are presented as representative examples. Descriptive analyses were done stratifying by sex, but no significant differences were identified. Sex as a predictor of attendance and supplement intake is addressed in the multivariate analyses.