RESULTS
Table 1 showed the characteristics of study participants. Of the 1674 subjects enrolled in the study, 843 subjects were boys (50.3%) and 831 were girls (49.6%). The mean age was 12.68±3.7 years with range of 10-15 years. Majority of respondents (20.7%) were in the age of 10 year and studying at 5th standard.