| KMT | SP | ST | |
| Age group | |||
| <9 years (n = 7) | 23.0 (4.6) | 35.6 (9.2) | 33.4 (3.2) |
| 9–11 years (n = 13) | 32.2 (5.7) | 43.2 (6.5) | 39.1 (5.2) |
| >11 years (n = 205) | 32.5 (6.4) | 42.6 (7.0) | 40.6 (5.5) |
| p Value* | |||
| <9 or 9–11 years | 0.002 | 0.045 | 0.001 |
| <9 or >11 years | 0.000 | 0.011 | 0.001 |
| 9–11 or >11 years | 0.837 | 0.770 | 0.325 |
*Between means.
Data are means (SD) except for p values (n = 224).
ANOVA was used for analysis.