| Variables | N (%) |
| Residence: |
|
| Mikocheni “A” | 153 (75.0) |
| Darajani | 51 (25 .0) |
| Sex: |
|
| Male | 93 (45.6) |
| Female | 111 (54.6) |
| Age (years): |
|
| 15 | 37 (18.1) |
| 16 | 30 (14.7) |
| 17 | 42 20.6) |
| 18 | 50 (24.5) |
| 19 | 45 (22.1) |
| Mean ± SD, years | 17.18 ± 1.41 |
| Current studying: | 114 (55.9) |
| Std 7 | 1 (0.9) |
| O-level (Form 1 - 4) | 98 (85.9) |
| A-level (Form 5 and 6) | 4 (3.5) |
| College | 11 (9.6) |
| Currently not studying | 90 (44.1) |
| Those completed STD 7 | 70 (34.3) |
| Those completed form 4 | 20 (9.8) |