| Variable (Age Groups) | N | % | Hb gram/dL | |
| Minimum | Maximum | |||
| 11 - 12 | 638 | 37.84 | 9.5 | 15.3 |
| 13 - 14 | 648 | 38.43 | 10.2 | 15.4 |
| 15 - 16 | 400 | 23.74 | 9.4 | 14.8 |