Pretackle—RRs of injury as a function of playing position and speed into tackle
| No of events in group (%) | RR | |||
|---|---|---|---|---|
| Risk factor | General play | Injured | Ratio (95% CI) | p Value |
| Grouped playing position (no of players in group) | ||||
| Ball carrier | ||||
| All forwards (8) | 2723 (45.5) | 55 (41.4) | 0.91 (0.70 to 1.19) | 0.484 |
| Front row (3) | 734 (12.3) | 17 (12.8) | 1.04 (0.64 to 1.69) | 0.865 |
| Second row (2) | 615 (10.3) | 9 (6.8) | 0.66 (0.34 to 1.27) | 0.215 |
| Back row (3) | 1374 (22.9) | 29 (21.8) | 0.95 (0.66 to 1.37) | 0.787 |
| All backs (7) | 3266 (54.5) | 78 (58.6) | 1.08 (0.86 to 1.35) | 0.529 |
| Scrum half (1) | 551 (9.2) | 7 (5.3) | 0.57 (0.27 to 1.21) | 0.142 |
| Midfield backs (3) | 1352 (22.6) | 40 (30.1) | 1.33 (0.97 to 1.82) | 0.073 |
| Back three (3) | 1363 (22.8) | 31 (23.3) | 1.02 (0.72 to 1.46) | 0.897 |
| Tackler-1 | ||||
| All forwards (8) | 3186 (53.5) | 35 (40.7) | 0.76 (0.55 to 1.06) | 0.107 |
| Front row (3) | 872 (14.6) | 13 (15.1) | 1.03 (0.60 to 1.79) | 0.912 |
| Second row (2) | 817 (13.7) | 5 (5.8) | 0.42 (0.18 to 1.02) | 0.056 |
| Back row (3) | 1497 (25.1) | 17 (19.8) | 0.79 (0.49 to 1.27) | 0.322 |
| All backs (7) | 2769 (46.5) | 51 (59.3) | 1.28 (0.97 to 1.68) | 0.085 |
| Scrum half (1) | 479 (8.0) | 5 (5.8) | 0.72 (0.30 to 1.74) | 0.472 |
| Midfield backs (3) | 1415 (23.8) | 34 (39.5) | 1.66 (1.18 to 2.34) | 0.003* |
| Back three (3) | 875 (14.7) | 12 (14.0) | 0.95 (0.54 to 1.68) | 0.857 |
| Tackler-2 | ||||
| All forwards (8) | 1591 (64.6) | 15 (60.0) | 0.93 (0.56 to 1.54) | 0.772 |
| Front row (3) | 471 (19.1) | 6 (24.0) | 1.25 (0.56 to 2.81) | 0.582 |
| Second row (2) | 377 (15.3) | 4 (16.0) | 1.04 (0.39 to 2.80) | 0.928 |
| Back row (3) | 743 (30.2) | 5 (20.0) | 0.66 (0.27 to 1.60) | 0.358 |
| All backs (7) | 870 (35.4) | 10 (40.0) | 1.13 (0.61 to 2.11) | 0.697 |
| Scrum half (1) | 148 (6.0) | 2 (8.0) | 1.33 (0.33 to 5.37) | 0.689 |
| Midfield backs (3) | 491 (20.0) | 3 (120) | 0.60 (0.19 to 1.87) | 0.379 |
| Back three (3) | 231 (9.4) | 5 (20.0) | 2.13 (0.88 to 5.17) | 0.095 |
| Player speed | ||||
| Ball carrier | ||||
| Fast | 1280 (20.7) | 44 (33.1) | 1.60 (1.18 to 2.16) | 0.002* |
| Slow | 4396 (71.0) | 82 (61.7) | 0.87 (0.70 to 1.08) | 0.204 |
| Stationary | 514 (8.3) | 7 (5.3) | 0.63 (0.30 to 1.34) | 0.230 |
| Tackler-1 | ||||
| Fast | 744 (12.1) | 19 (22.1) | 1.85 (1.18 to 2.92) | 0.008* |
| Slow | 4544 (73.7) | 55 (64.0) | 0.88 (0.67 to 1.15) | 0.337 |
| Stationary | 880 (14.3) | 11 (12.8) | 0.91 (0.50 to 1.64) | 0.749 |
| Tackler-2 | ||||
| Fast | 121 (4.7) | 6 (24.0) | 5.07 (2.23 to 11.51) | <0.001* |
| Slow | 2109 (82.5) | 16 (64.0) | 0.78 (0.47 to 1.27) | 0.312 |
| Stationary | 327 (12.8) | 3 (12.0) | 0.94 (0.30 to 2.92) | 0.912 |
↵* Statistically significant difference (<0.01).