For all the two survey rounds, adult population, ages 15-49 years were interviewed. The respondents were chosen from the same enumeration areas as was in the first round for comparability. A total of 2200 respondents were interviewed in the 2006 survey. This is equally split between urban and rural areas (50% urban and 50% rural). Additionally, more than half of the sample is not married (51%), is between the ages of 15-29 (68%), and has secondary education (65%). The gender distribution is 48% women and 52% men. For the two rounds, the data collection tool was a questionnaire using dichotomous (yes/no) measures questions to measure population characteristics, exposure to (recall of) PSI activities, reported behaviors, and the presumed determinants of those behaviors grouped under the headings of opportunity, ability and motivation per the PSI Behavior Change Framework (Chapman and Patel, 2004). Four and five-point Likert scales were also used to provide a richer measure of behavioral determinants such as perceptions of product and service availability, outcome expectations and other constructs. The measures for these variables were constructed based on prior research and were included in the analysis after conducting a reliability and validity check where applicable. After data collection, logistic regression, analysis of variance, and other descriptive statistics were used to perform the monitoring, evaluation, and segmentation analysis