Table 1. Participants by Sport Participation (Mean, SD).
| Predictor | All participants (N = 1054) 1 | Participants with diaried sport (N = 626) | P for difference between those with and without diaried sport 2 | |||
|---|---|---|---|---|---|---|
| Boys | Girls | Boys | Girls | Boys | Girls | |
| Male (N, %) | 475 (45) | 263 (42) | 0.016 | |||
| Age (years) | 15.7 (0.55) | 15.7 (0.54) | 15.7 (0.55) | 15.7 (0.55) | 0.14 | 0.37 |
| Parents highly educated (%) 3 | 64 | 66 | 68 | 69 | 0.052 | 0.17 |
| From Munich (urban) | 57 | 50 | 58 | 46 | 0.64 | 0.027 |
| BMI (kg/m2) | 20.7 (3.2) | 21.0 (2.9) | 20.5 (3.0) | 21.1 (2.9) | 0.40 | 0.50 |
| BMI category (%) 4 | ||||||
| Underweight | 9.74 | 6.25 | 9.88 | 4.70 | 0.98 | 0.048 |
| Normal | 79.0 | 85.2 | 80.2 | 85.9 | 0.45 | 0.84 |
| Overweight | 8.66 | 5.21 | 7.91 | 6.35 | 0.48 | 0.10 |
| Obese | 2.60 | 3.30 | 1.98 | 3.04 | 0.33 | 0.66 |
| Overweight + obese | 11.0 | 8.51 | 9.88 | 9.39 | 0.26 | 0.31 |
| Activity on all days (min): | ||||||
| Sedentary 5 | 586 (81) | 598 (69) | 584 (75) | 593 (63) | 0.39 | 0.0016 |
| Lifestyle 5 | 259 (60) | 247 (51) | 261 (56) | 253 (50) | 0.29 | <0.0001 |
| Moderate 5 | 29.6 (13) | 26.0 (15) | 32.1 (13) | 26.6 (14) | <0.0001 | 0.00077 |
| Vigorous 5 | 13.0 (11) | 10.8 (11) | 15.2 (11) | 11.5 (9.3) | <0.0001 | <0.0001 |
| MVPA 5 | 42.6 (21) | 36.8 (23) | 47.3 (20) | 38.2 (20) | <0.0001 | <0.0001 |
| Total vertical counts, thousands | 327 (117) | 296 (131) | 352 (108) | 309 (111) | <0.0001 | <0.0001 |
| % days with > 60 minutes MVPA | 25 (23) | 17 (22) | 31 (23) | 19 (21) | <0.0001 | <0.0001 |
| Activity on non-sport day 6 (min) 5 | ||||||
| Sedentary 5 , 6 | 596 (87) | 610 (77) | 601 (87) | 610 (76) | 0.13 | 0.73 |
| Lifestyle 5 , 6 | 251 (63) | 238 (55) | 248 (60) | 240 (57) | 0.26 | 0.24 |
| Moderate 5 , 6 | 25.9 (13) | 23.3 (15) | 25.9 (13) | 22.5 (13) | 0.87 | 0.33 |
| Vigorous 5 , 6 | 9.94 (9.9) | 7.85 (11) | 10.1 (9.6) | 6.90 (7.2) | 0.50 | 0.18 |
| MVPA 5 , 6 | 35.8 (20) | 31.1 (23) | 36.0 (20) | 29.4 (18) | 0.59 | 0.23 |
| Total vertical counts, thousands | 288 (111) | 257 (128) | 287 (103) | 250 (98.2) | 0.83 | 0.89 |
2) Wilcoxon rank-sum test, two-sided
3) Based on maximum of mother and father; 1 if university entrance or higher, 0 otherwise.
4) Based on sex- and age-specific percentiles in[22]; expected percentages would be 10% underweight, 7% overweight, and 3% obese.
5) Activity levels as described in [24]. MVPA is moderate or vigorous.
6) 9 participants (1.4%) had sport every day and are thus excluded from these summary statistics