Table 1 Baseline characteristics before the start of intervention

Age (years)

13.6 (10.9–16.9)

12.6 (11.4–16.9)

13.7 (10.9–16.8)

0.68

BMI (kg/m²)

28.8 (22.6–35.7)

28.8 (22.6–35.7)

28.8 (23.5–34.5)

0.83

BMI-SDS

2.5 (1.5–3.5)

2.5 (1.5–3.5)

2.5 (1.5–3.2)

0.74

SDQ total score

12.0 (1.0–25.0)

8.0 (2.0–25.0)

12.6 (1.0–25.0)

0.88

BMI mother (kg/m²)

27.3 (20.4–36.2)

27.4 (20.4–36.2)

27.3 (22.3–34.4)

0.98

BMI father (kg/m²)

28.4 (21.7–38.0)

28.4 (22.3–38.0)

27.7 (21.7–37.5)

0.67