Communication quality* between the medical team and the president/board of the club
| Outcomes* | Low (1–2/5), n=21 | Moderate (3/5), n=16 | High (4–5/5), n=40 | P values† |
| Injury burden‡ | 147.9 | 127.2 | 107.2 | 0.159 |
| Incidence of severe injuries§ | 1.2 | 1.2 | 0.9 | 0.113 |
| Training attendance (%) | 83.4 | 82.7 | 85.6 | 0.141 |
| Match availability (%) | 86.8 | 86.0 | 88.9 | 0.114 |
Values represent the medians in each group.
*Communication quality was classified as low, moderate or high, based on overall questionnaire scores.
†Significance was based on Kruskal-Wallis tests.
‡Injury burden=number of days of absence per 1000 hours of exposure (Σ days of absence/Σ hours of exposure ×1000).
§Incidence of severe injuries=number of severe injuries (resulting in >28 days of absence from trainings and matches) per 1000 hours of exposure (Σsevere injuries/Σexposure hours×1000).