| category of students | Freq (%) | Menarche (Mean ± Std) (Yrs) | Minimum | Maximum | t-value | p-value |
| Boarding school | 89 (28.62) | 12.69 ± 1.26 | 9.00 | 16.00 |
|
|
| Day school | 123 (39.55) | 12.86 ± 1.15 | 10.00 | 17.00 | 5.270 | 0.000 |
| Total | 212 (68.17) | 12.79 ± 1.20 | 9.00 | 17.00 |
|
|