To understand participants’ education, interviewers
asked whether they attended any formal school. Participants
responded positive were considered as having education,
while negative as having no education. With
regard to participants’ occupation, interviewers asked
them about their type of work. Response categories
were 0 = housewife, 1 = government service, 2 = private
service and 9 = others. As frequency for different working
categories except housewife was very low, we
merged all the working categories into a single category,
i.e., working, whereas housewives were considered as