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| Age | Gender Male (n) | Gender Female (n) | % of subjects presenting fluorosis (n) | n total of scholars examined |
|---|---|---|---|---|
| 12 | 39.31 (68) | 35.43 (62) | 37.36 (130) | 348 |
| 13 | 38.04 (62) | 41.28 (71) | 39.70 (133) | 335 |
| 14 | 34.59 (64) | 35.26 (55) | 34.90 (119) | 341 |
| 15 | 27.59 (40) | 31.54 (47) | 29.59 (87) | 294 |
| Total | 35.58 (469) | 1318 |
