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Distribution, n (%), of the sample, by gender and three age groups.
| Gender | Age Group | Total | ||
|---|---|---|---|---|
| 11–14 Years | 15–16 Years | 17–18 Years | ||
| Boys | 128 (8.1%) | 313 (19.7%) | 222 (14.0%) | 663 (41.7%) |
| Girls | 179 (11.3%) | 407 (25.6%) | 341 (21.4%) | 927 (58.3%) |
| Total | 307 (19.3%) | 720 (45.3%) | 563 (35.4%) | 1590 (100%) |
