(a) Boys desire to change body according to amount and type of sports

Predictor variable	Univariate, unadjusted analysis OR (95% CI)	Adjusted, full model analysis OR (95% CI)
Reference category: age group <18 years
18–20 years	0.92 (0.56–1.52)	1.14 (0.64–2.00)
>20 years	1.26 (0.74–2.17)	1.53 (0.84–2.81)
Reference category: BMI category 10th percentile-median
<10th percentile (<18.74)	1.57 (0.98–2.52)	1.64 (0.97–2.77)
Median-90th percentile (21.79–26.35)	1.38 (1.07–1.79)	1.42 (1.08–1.86)
>90th percentile (>26.46)	3.83 (2.41–6.10)	3.86 (2.32–6.42)
Reference category: no physical activity during a week
Small amount	1.37 (0.90–2.09)	1.01 (0.60–1.71)
Moderate amount	1.35 (0.93–1.95)	0.96 (0.58–1.58)
Great amount	1.52 (1.06–2.18)	1.23 (0.74–2.06)
Reference category: no sports
Team sports	1.06 (0.78–1.46)	0.98 (0.65–1.47)
Individual sports without advantage of leanness	0.93 (0.51–1.67)	0.82 (0.43–1.55)
Individual sports with advantage of leanness	1.73 (1.26–2.37)	1.65 (1.12–2.45)