Crude analysis of the association between an increase in handball load* and risk of shoulder-related injuries in handball
| Exposure group of handball load* | Injuries | Weeks at risk | HR | 95% CI | p Value |
|---|---|---|---|---|---|
| Min to 20% | 26 | 7261 | 1 (ref) | ||
| 20–60% | 11 | 2540 | 1.22 | 0.62 to 2.40 | 0.57 |
| >60% | 15 | 2239 | 1.91 | 1.00 to 3.70 | 0.05 |
| <−2 SD | 1 | 293 | 1.07 | 0.32 to 23.18 | 0.95 |
| 4 weeks | 15 | 2351 | 2.70 | 0.13 to 8.58 | 0.36 |
| Total | 68 | 14 684 | |||
| Test for no difference | 0.14† |
*See the text for definition.
†–2 SD and 4-week groups not included.
–2 SD, weeks in which the 4-week average handball load was below –2 SDs from the mean;
4 weeks, the first 4 weeks of study, increase in handball load calculations not possible.