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Table 1: Descriptive statistics of the children examined
| Age (in years) | Male n (%) | Female n (%) | Total n (%) | ||||
| 10 | 358 (52.6) | 322 (47.4) | 680 (28.7) | ||||
| 11 | 334 (53.7) | 288 (46.3) | 622 (26.3) | ||||
| 12 | 589 (55.4) | 475 (44.6) | 1064 (45) | ||||
| Total | 1281 (54.1) | 1085 (45.9) | 2366 (100) |
