Table 1.
Adolescents’ demographic and anthropometric characteristics pre- and post-intervention (N = 1020) and according to weight status.
| Total Sample | Normal Weight | Overweight/Obesity | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Intervention | p ‡ | Intervention | p ‡ | Intervention | p ‡ | ||||
| Pre | Post | Pre | Post | Pre | Post | ||||
| Males (%) † | 421 (41.3) | 285 (38.5) | 124 (47.5) | ||||||
| Age (years) | 14.08 ± 1.63 | 14.17 ± 1.63 | 13.84 ± 1.62 | ||||||
| WC (cm) | 70.97 ± 9.14 | 70.52 ± 9.04 | 0.007 | 67.39 ± 5.54 | 67.16 ± 5.72 | 0.166 | 81.08 ± 9.59 | 80.02 ± 9.81 | 0.019 |
| WHtR | 0.435 ± 0.053 | 0.432 ± 0.052 | 0.006 | 0.413 ± 0.030 | 0.412 ± 0.032 | 0.140 | 0.496 ± 0.056 | 0.489 ± 0.057 | 0.019 |
| WHR | 0.758 ± 0.069 | 0.753 ± 0.065 | 0.015 | 0.745 ± 0.061 | 0.741 ± 0.056 | 0.141 | 0.796 ± 0.078 | 0.787 ± 0.077 | 0.023 |
| BMI (kg/m2) | 21.38 ± 3.54 | 21.81 ± 3.62 | <0.001 | 19.77 ± 1.97 | 20.25 ± 2.07 | <0.001 | 25.95 ± 2.98 | 26.23 ± 3.42 | <0.001 |
| BMI z-score | 0.47 ± 0.86 | 0.59 ± 0.82 | <0.001 | 0.09 ± 0.64 | 0.25 ± 0.62 | 0.005 | 1.54 ± 0.36 | 1.55 ± 0.43 | 0.001 |
| Diet self-efficacy score | 94.21 ± 24.04 | 100.49 ± 23.00 | <0.001 | 93.90 ± 23.79 | 100.22 ± 23.07 | <0.001 | 95.92 ± 24.35 | 102.50 ± 21.92 | 0.001 |
| Exercise self-efficacy score | 82.18 ± 25.31 | 85.25 ± 19.80 | <0.001 | 82.94 ± 24.74 | 85.44 ± 19.80 | <0.001 | 79.72 ± 26.75 | 84.93 ± 19.82 | 0.170 |
Values are displayed as means ± SD or † frequencies (percentages). ‡ p-value of paired t-test. Bold indicates statistically significant differences. WC, waist circumference; WHtR, waist-to-height ratio; WHR, waist-to-hip ratio; BMI, body mass index.