|  |  |  | Sports club members |  |  |  | ||
---|---|---|---|---|---|---|---|---|---|
 | All (n = 1077) | Boys (n = 549) | Girls (n = 528) | ||||||
Training Characteristics | OR* | 95% CI | P Value# | OR | 95% CI | P Value § | OR | 95% CI | P Value¤ |
Main sports | |||||||||
 Team and contact sports | 1.0 |  |  | 1.0 |  |  | 1.0 |  |  |
 Individual sports | 0.88 | 0.66–1.18 | 0.401 | 0.99 | 0.62–1.58 | 0.981 | 0.81 | 0.56–1.19 | 0.288 |
Starting training (age) | |||||||||
 4–7 years old | 1.0 |  |  | 1.0 |  |  | 1.0 |  |  |
 8–11 years old | 0.93 | 0.70–1.23 | 0.595 | 0.73 | 0.49–1.09 | 0.123 | 1.14 | 0.75–1.72 | 0.549 |
 12–15 years old | 0.77 | 0.54–1.10 | 0.155 | 1.02 | 0.62–1.69 | 0.923 | 0.64 | 0.38–1.07 | 0.086 |
Active training years at least 2 times/week | |||||||||
 0–4 years | 1.0 |  |  | 1.0 |  |  | 1.0 |  |  |
 5–8 years | 1.33 | 0.99–1.79 | 0.056 | 1.17 | 0.75–1.82 | 0.488 | 1.49 | 1.00–2.21 | 0.048 |
 9–11 years | 1.02 | 0.72–1.46 | 0.898 | 1.03 | 0.64–1.67 | 0.894 | 0.94 | 0.55–1.63 | 0.835 |
Training hours per week during training season | |||||||||
 3–6 h/week | 1.0 |  |  | 1.0 |  |  | 1.0 |  |  |
 7–14 h/week | 1.63 | 1.21–2.18 | 0.001 | 1.91 | 1.24–2.94 | 0.003 | 1.42 | 0.95–2.11 | 0.088 |
 15 h or more/week | 1.66 | 1.11–2.50 | 0.014 | 2.14 | 1.24–3.71 | 0.007 | 1.23 | 0.66–2.30 | 0.513 |
Training hours per week during competition season | |||||||||
 3–6 h/week | 1.0 |  |  | 1.0 |  |  | 1.0 |  |  |
 7–14 h/week | 1.48 | 1.10–1.98 | 0.009 | 1.64 | 1.08–2.49 | 0.021 | 1.33 | 0.88–2.01 | 0.173 |
 15 h or more/week | 1.97 | 1.32–2.94 | 0.001 | 2.26 | 1.31–3.90 | 0.003 | 1.68 | 0.92–3.05 | 0.091 |
The amount of competitions during last 12 months | |||||||||
 7–19 competitions | 1.0 |  |  | 1.0 |  |  | 1.0 |  |  |
 20–39 competitions | 1.39 | 0.96–2.02 | 0.085 | 1.21 | 0.71–2.06 | 0.492 | 1.60 | 0.95–2.71 | 0.080 |
 40 competitions or more | 1.53 | 1.02–2.30 | 0.038 | 1.42 | 0.83–2.41 | 0.197 | 1.57 | 0.81–3.05 | 0.178 |
Resting days per week during training season | |||||||||
 3 resting days/week | 1.0 |  |  | 1.0 |  |  | 1.0 |  |  |
 2 resting days/week | 1.15 | 0.80–1.65 | 0.448 | 1.07 | 0.64–1.77 | 0.807 | 1.25 | 0.75–2.08 | 0.400 |
 1 resting day/week | 1.21 | 0.84–1.75 | 0.312 | 1.30 | 0.78–2.18 | 0.312 | 1.11 | 0.66–1.88 | 0.689 |
 0 resting day/week | 1.17 | 0.44–3.16 | 0.750 | 1.30 | 0.34–4.89 | 0.702 | 1.04 | 0.23–4.59 | 0.961 |