Table 1. Demographic characteristics of study population.
| Overall | Boys | Girls | P | ||||
|---|---|---|---|---|---|---|---|
| N (%) | 6759 | 3335 | (49.3) | 3424 | (50.7) | ||
| Age (years) | |||||||
| 6-9 | 1772 | (26.2) | 899 | (27.0) | 873 | (25.5) | |
| 10-14 | 2519 | (37.3) | 1257 | (37.7) | 1262 | (36.9) | |
| 15-19 | 2468 | (36.5) | 1179 | (35.4) | 1289 | (37.6) | 0.127 |
| Ethnicity, n (%) | |||||||
| Malay | 4548 | (67.3) | 2246 | (67.3) | 2302 | (67.2) | |
| Indian | 662 | (9.8) | 332 | (10.0) | 330 | (9.6) | |
| Chinese | 1344 | (19.9) | 658 | (19.7) | 686 | (20.0) | |
| Bumiputera/Orang | |||||||
| Asli | 122 | (1.8) | 61 | (1.8) | 61 | (1.8) | |
| Other | 83 | (1.2) | 38 | (1.1) | 45 | (1.3) | 0.952 |
Differences in distributions across categories between girls and boys were compared using Pearson's Chi squared test.