Communication quality* between the medical team and the head coach/manager
| Outcomes* | Low (1–2/5), n=8 | Moderate (3/5), n=18 | High (4–5/5), n=51 | P values† |
| Injury burden‡ | 183.6 | 120.7 | 105.0 | 0.027 |
| Incidence of severe injuries§ | 1.7 | 1.0 | 0.9 | 0.025 |
| Training attendance (%) | 76.2 | 85.3 | 83.4 | 0.003 |
| Match availability (%) | 81.7 | 88.5 | 87.5 | 0.013 |
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).