Injury incidence density (IID) of self-reported and time-loss ankle sprain recurrences (95% CI) per 1000 h of sports participation, as well as the HR (95% CI) derived from Cox regression analyses
| Recurrent ankle sprain | App | Booklet | |||
|---|---|---|---|---|---|
| Overall | n | IID | n | IID | HR |
| Self-reported | 46 | 25.3 (18.0 to 32.7) | 47 | 25.6 (18.3 to 32.9) | 1.04 (0.69 to 1.56) |
| Time loss | 2 | 0.82 (−0.3 to 2.0) | 6 | 2.36 (0.5 to 4.2) | 3.07 (0.62 to 15.20) |
| Male | |||||
| Self-reported | 21 | 17.0 (9.7 to 24.2) | 11 | 10.8 (4.4 to 17.1) | 0.64 (0.31 to 1.34) |
| Time loss | 1 | 0.7 (−0.7 to 2.0) | 3 | 2.7 (−0.4 to 5.8) | 3.95 (0.41 to 38.02) |
| Female | |||||
| Self-reported | 25 | 43.3 (26.3 to 60.3) | 36 | 44.2 (29.8 to 58.7) | 1.10 (0.66 to 1.85) |
| Time loss | 1 | 1.0 (−1.0 to 3.1) | 3 | 2.1 (−0.3 to 4.5) | 2.65 (0.27 to 25.14) |