Table 2.
Age, sex and grade of students in intervention and control groups
| Variable | Intervention group | Control group | ||||
|---|---|---|---|---|---|---|
|
|
|
|||||
| Total (N = 1,265) | 2014 (n = 332) | 2016 (n = 933) | Total (N = 854) | 2014 (n = 255) | 2016 (n = 599) | |
|
|
|
|||||
| n (%) | n (%) | n (%) | n (%) | n (%) | n (%) | |
| Sex | ||||||
| Male | 420 (33.4) | 97 (29.2) | 323 (34.9) | 480 (56.7) | 180 (70.6) | 300 (50.7) |
| Female | 838 (66.6) | 235 (70.8) | 603 (65.1) | 367 (43.3) | 75 (29.4) | 292 (49.3) |
| Unknown | 7 (0.6) | 0 (0.0) | 7 (0.8) | 7 (0.8) | 0 (0.0) | 7 (1.2) |
| Age group (in years) | ||||||
| 11–14 | 661 (52.8) | 142 (42.8) | 519 (56.4) | 321 (54.5) | 443 (52.5) | 122 (47.8) |
| 15–20 | 592 (47.2) | 190 (57.2) | 402 (43.6) | 268 (45.5) | 401 (47.5) | 133 (52.2) |
| Unknown | 12 (0.9) | 0 (0.0) | 12 (1.3) | 10 (1.2) | 0 (0.0) | 10 (1.7) |
| Grade | ||||||
| 1st | 282 (22.3) | 53 (16.0) | 229 (24.5) | 177 (20.7) | 44 (17.3) | 133 (22.2) |
| 2nd | 259 (20.5) | 67 (20.2) | 192 (20.6) | 178 (20.8) | 51 (20.0) | 127 (21.2) |
| 3rd | 241 (19.1) | 62 (18.7) | 179 (19.2) | 175 (20.5) | 50 (19.6) | 125 (20.9) |
| 4th | 273 (21.6) | 86 (25.9) | 187 (20.0) | 151 (17.7) | 44 (17.3) | 107 (17.9) |
| 5th | 210 (16.6) | 64 (19.3) | 146 (15.6) | 173 (20.3) | 66 (25.9) | 107 (17.9) |