| INT | COMP | Intervention effect (unadjusted models) (marginal mean difference b) | Intervention effect (adjusted models)c (marginal mean differenceb) |  | |||||||
Y3 (Baseline) | Y5 (Final) | Y3 (Baseline) | Y5 (Final) | INT | COMP | INT vs COMP | p value | INT | COMP | INT vs COMP | p value | |
n | 1208 | 1010 | 1145 | 750 | 1208 | 1010 | 1145 | 750 | Â | Â | Â | Â |
Anthropometry | ||||||||||||
 BMI (kg/m2) | 18.54d | 18.43e | 18.29e | 18.64e | −0.17 (−0.47–0.13) | 0.37 (−0.01–0.76) | −0.54 (−1.03 - -0.05) | 0.029** | −0.12 (−0.40–0.17) | 0.16 (−0.17–0.50) | −0.28 (−0.72–0.16) | 0.209 |
 BMI z-score | 0.33g | 0.40f | 0.30e | 0.46e | 0.05 (− 0.05–0.16) | 0.18** (0.04–0.31) | − 0.12 (− 0.29–0.05) | 0.151 | 0.05 (− 0.05–0.16) | 0.14** (− 0.02–0.26) | −0.08 (− 0.24–0.08) | 0.306 |
HRQoL | 0.80 | 0.79 | 0.82 | 0.77 | – | – | – | – | −0.012 (− 0.029–0.004) | −0.046** (− 0.071 – − 0.022) | 0.034** (0.006–0.062) | 0.016 |
 | INT | COMP | Intervention effect (unadjusted models) (odds ratio (95% CI)2) | Intervention effect (adjusted models) (odds ratio (95% CI)2) | ||||||||
 | Y3 (Baseline) | Y5 (Final) | Y3 (Baseline) | Y5 (Final) | INTh | COMPi | INT vs COMPj | p value | INTh | COMPi | INT vs COMPj | p value |
n | 1202 | 983 | 1144 | 749 | 1202 | 983 | 1144 | 749 | Â | Â | Â | Â |
Weight status categorya | % | % | % | % | Â | Â | Â | |||||
 Underweight | 7.4 | 4.7 | 5.8 | 4.4 | 0.62** (0.43–0.91) | 0.75 (0.48–1.18) | 0.83 (0.46–1.48) | 0.525 | 0.63** (0.43–0.91) | 0.75 (0.48–1.17) | 0.84 (0.47–1.52) | 0.570 |
 Healthy weight | 69.1 | 70.9 | 74.5 | 70.5 | 1.13 (0.92–1.37) | 0.78 (0.61–1.00) | 1.44 (1.05–1.98) | 0.024** | 1.11 (0.92–1.35) | 0.85 (0.68–1.06) | 1.31 (0.98–1.73) | 0.069 |
 Overweight | 18.1 | 18.7 | 15.8 | 17.9 | 0.99 (0.78–1.26) | 1.25 (0.94–1.68) | 0.79 (0.54–1.16) | 0.226 | 1.01 (0.80–1.27) | 1.16 (0.88–1.54) | 0.87 (0.60–1.25) | 0.451 |
 Obese | 5.5 | 4.6 | 3.9 | 6.5 | 0.85 (0.56–1.27) | 1.65** (1.03–2.64) | 0.51** (0.28–0.95) | 0.035** | 0.81 (0.54–1.21) | 1.61** (1.03–2.51) | 0.51** (0.28–0.92) | 0.026** |
 Combined overweight/obese | 23.5 | 23.3 | 19.8 | 24.4 | 0.94 (0.75–1.17) | 1.41** (1.07–1.86) | 0.67 (0.47–0.95) | 0.025** | 0.96 (0.78–1.18) | 1.27 (1.00–1.62) | 0.75 (0.54–1.04) | 0.083 |