Two rounds of the survey were conducted with 472 respondents: 219 from the intervention villages, and 253 from the comparison villages. Baseline data were collected before the roll out of the health program, and the follow-up survey was conducted with the same respondents after 12 months. The inclusion criteria at the time of the baseline survey were women of reproductive age having a child aged less than two years. An equal number of respondents were recruited from intervention and comparison villages. A list of SHG members in the intervention and comparison villages was made available by the participating organizations. Based on the list, we firstly identified eligible houses in each village. Based on the calculated sample size, we then selected households proportionate to size using systematic random sampling.