Sampling technique
A total of 1,227 respondents were interviewed. The sample size enabled us to determine the proportion of respondents with correct answers with a margin of error of ±3.
A cross sectional survey was conducted using multistage random sampling. In stage 1, five out of the seven NMDs were selected; namely Khyber, Kurram, Orakzai, North Waziristan and South Waziristan. In stage 2, three subdivisions were selected in each district followed by selection of two populous hubs of more than 15,000 population in each subdivision during stage 3. In stage 4, five villages were selected in each populous hub. Respondents were selected from those coming to outreach session. The selection is best illustrated in Figure 1 .