Three thousand two hundred thirtyone
questionnaires were completed, a
response rate of 100.0%. Of the 3,231
students, 55.2% lived in a rural area and
44.8% lived in an urban area. Females
comprised 47.1% and males comprised
52.9%. Subjects were aged 12 to 17 years
old: 16.6% were aged 12 years, 17.2%
were 13 years old, 17.5% were 14 years old, 18.0% were 15 years old, 16.3% were
16 years old and 14.4% were 17 years old.