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| Boys n = 90 | Girls n = 65 | Total n = 155 | |||
| Intervened n = 42 | Control n = 48 | Intervened n = 21 | Control n = 44 | Intervened n = 63 | Control n = 92 | |
| Grades1 |
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| Third n (%) | 13 (30.95) | 15 (31.25) | 3 (14.29) | 13 (29.55) | 16 (25.39) | 28 (30.43) |
| Fourth n (%) | 11 (26.19) | 17 (35.42) | 9 (42.86) | 12 (27.27) | 20 (31.74) | 29 (31.52) |
| Fifth n (%) | 18 (42.86) | 16 (33.33) | 9 (42.86) | 19 (46.43) | 27 (42.85) | 35 (38.04) |
| Age (years)2 mean ± SD | 10.0 ± 1.1 | 9.8 ± 1.3 | 9.9 ± 0.7 | 10.0 ± 1.5 | 10.0 ± 1.0 | 9.9 ± 1.4 |
| CI 95% | 9.6 - 10.3 | 9.4 - 10.2 | 9.6 - 10.2 | 9.6 - 10.5 | 9.7 - 10.2 | 9.6 - 10.2 |
| Weight (kg)2 mean ± SD | 37.1 ± 10.1 | 39.3 ± 10.1 | 44.6 ± 15.3 | 41.4 ± 16.8 | 39.6 ± 12.5 | 40.3 ± 13.8 |
| CI 95% | 34.1 - 40.1 | 36.6 - 42.1 | 37.9 - 51.2 | 36.6 - 46.1 | 36.6 - 42.6 | 37.7 - 43.0 |
| Height (m)2 mean ± SD | 137.2 ± 7.4 | 138.7 ± 8.9 | 140.8 ± 10.6 | 139.4 ± 10.9 | 138.2 ± 8.6 | 139.0 ± 10.0 |
| CI 95% | 135.0 - 139.3 | 136.2 - 141.1 | 136.3 - 145.4 | 136.3 - 142.4 | 136.3 - 140.5 | 137.1 - 140.9 |
| BMI (kg/m2)2 mean ± SD | 19.5 ± 3.9 | 20.2 ± 3.6 | 21.8 ± 4.8 | 20.7 ± 5.3 | 20.3 ± 4.3 | 20.5 ± 4.5 |
| CI 95% | 18.3 - 20.6 | 19.2 - 21.2 | 19.8 - 23.9 | 19.2 - 22.2 | 19.2 - 21.3 | 19.6 - 21.3 |
| ZBMI score2 mean ± SD | 1.08 ± 1.28 | 1.45 ± 1.23 | 1.52 ± 1.30 | 1.17 ± 1.28 | 1.2 ± 1.3 | 1.32 ± 1.26 |
| CI 95% | 0.70 - 1.46 | 1.11 - 1.79 | 0.95 - 2.08 | 0.81 - 1.53 | 0.91 - 1.54 | 1.07 - 1.56 |
| Nutritional status1 |
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| ZBMI < −1 n(%) | 2 (4.8) | 1 ( 2.1) | 1 ( 4.8) | 3 (6.8) | 3 (4.8) | 4 (4.4) |
| −1 ≤ ZBMI ≤ 1 n (%) | 19 (45.2) | 17 (35.4) | 6 (28.6) | 18 (40.9) | 25 (39.7) | 35 (38.0) |
| 1 < ZBMI ≤ 2 n (%) | 11 (26.2) | 13 (27.1) | 6 (28.6) | 12 (27.3) | 17 (27.0) | 25 (27.2) |
| ZBMI > 2 n (%) | 10 (23.8) | 17 (35.4) | 8 (38.1) | 11 (25.0) | 18 (28.6) | 28 (30.4) |