Cumulative injury incidence (CII; in %) and injury incidence rates (IIRs; with 95% CI) in different subgroups (N=249)
| CII (%) | p Value* | IIR (95% CI)† | p Value* | |
|---|---|---|---|---|
| Overall | 15.3 | 0.43 (0.28 to 0.58) | ||
| Sex | ||||
| Boys | 15.1 | 0.936 | 0.32 (0.17 to 0.47) | 0.032 |
| Girls | 15.5 | 0.58 (0.31 to 0.86) | ||
| Age | ||||
| <8 years | 12.5 | 0.060 | 0.38 (0.20 to 0.55) | 0.177 |
| ≥8 years | 21.9 | 0.56 (0.27 to 0.84) | ||
| Parental education | ||||
| Low | 14.9 | 0.874 | 0.41 (0.22 to 0.60) | 0.648 |
| High | 15.7 | 0.46 (0.22 to 0.70) | ||
| Migrational background | ||||
| No | 16.8 | 0.438 | 0.47 (0.28 to 0.67) | 0.395 |
| Yes | 13.2 | 0.37 (0.14 to 0.60) | ||
| Overweight | ||||
| No | 14.2 | 0.329 | 0.40 (0.25 to 0.55) | 0.253 |
| Yes | 20.0 | 0.59 (0.11 to 1.06) | ||
| Minutes of MVPA‡ | ||||
| T1 | 14.0 | 0.916 | 0.48 (0.17 to 0.79) | T1 vs T2: 0.801 |
| T2 | 15.9 | 0.44 (0.18 to 0.70) | T2 vs T3: 0.695 | |
| T3 | 16.1 | 0.39 (0.17 to 0.61) | T3 vs T1: 0.525 | |
| KTK motor quotient | ||||
| Low | 21.1 | 0.372 | 0.49 (0.00 to 0.98) | Low vs normal: 0.527 |
| Normal | 12.8 | 0.35 (0.17 to 0.53) | Normal vs high: 0.103 | |
| High | 18.9 | 0.57 (0.26 to 0.87) | High vs low: 0.837 | |
| Shuttle run test (number of 20 m laps)‡ | ||||
| T1 | 22.1 | 0.086 | 0.64 (0.32 to 0.96) | T1 vs T2: 0.027 |
| T2 | 10.6 | 0.30 (0.09 to 0.52) | T2 vs T3: 0.331 | |
| T3 | 12.8 | 0.36 (0.13 to 0.59) | T3 vs T1: 0.076 | |
| Training in sports club | ||||
| No | 11.6 | 0.147 | 0.35 (0.12 to 0.58) | 0.239 |
| Yes | 18.3 | 0.49 (0.29 to 0.69) | ||
*p Values for differences between CII or IIR, respectively.
†Number of injuries per 1000 h of exposure to MVPA.
‡T1-T3: sex-specific and age-specific tertiles generated from the study population (T1=lowest tertile).
KTK, Körperkoordinationstest für Kinder; MVPA, moderate-to-vigorous intensity physical activity.