Player characteristics and compliance with the return-to-play regulation postconcussion
| Player compliance with return-to-play regulation postconcussion | ||||||
|---|---|---|---|---|---|---|
| Yes (n=8) | No (n=142) | Total (n=150) | Pearson's χ2 | |||
| Player characteristic | n (%) | n (%) | n (%) | Statistic | df | p Value |
| Age (years) | ||||||
| 15–20 | 2 (4) | 48 (96) | 50 (33) | 1.22 | 2 | 0.544 |
| 1–26 | 5 (8) | 61 (92) | 66 (44) | |||
| 27+ | 1 (3) | 33 (97) | 34 (23) | |||
| Competition level | ||||||
| Schoolboy | 0 (0) | 21 (100) | 21 (14) | 3.2 | 2 | 0.202 |
| Suburban | 6 (9) | 63 (91) | 69 (46) | |||
| Grade | 2 (3) | 58 (97) | 60 (40) | |||
| Impulsivity score | ||||||
| Low–medium | 7 (6) | 111 (94) | 118 (79) | 0.21 | 1 | 0.647 |
| High | 1 (4) | 26 (96) | 27 (18) | |||
| Missing data | 0 (0) | 5 (100) | 5 (3) | |||
| Years of rugby experience | ||||||
| 0–8 | 2 (5) | 35 (95) | 37 (25) | 0.01 | 1 | 0.925 |
| >8 | 6 (6) | 97 (94) | 103 (69) | |||
| Missing data | 0 (0) | 10 (100) | 10 (7) | |||
| Principal player position | ||||||
| Forward | 4 (6) | 61 (94) | 65 (43) | 0 | 1 | 0.982 |
| Back | 4 (6) | 62 (94) | 66 (44) | |||
| Missing data | 0 (0) | 19 (100) | 19 (13) | |||
| Training hours per week | ||||||
| <3 | 2 (6) | 33 (94) | 35 (23) | 0 | 1 | 0.64 |
| 3+ | 6 (6) | 99 (94) | 105 (70) | |||
| Missing data | 0 (0) | 10 (100) | 10 (7) | |||
| Regular use of headgear | ||||||
| No | 5 (5) | 93 (95) | 98 (65) | 0.26 | 1 | 0.609 |
| Yes | 3 (7) | 38 (93) | 41 (27) | |||
| Missing data | 0 (0) | 11 (100) | 11 (8) | |||
| Concussion in previous 12 months* | ||||||
| No | 7 (7) | 93 (93) | 100 (67) | 1.07 | 1 | 0.3 |
| Yes | 1 (2) | 39 (98) | 40 (27) | |||
| Missing data | 0 (0) | 10 (100) | 10 (7) | |||
| Timing of most recent concussion in previous 12 months† | ||||||
| 0–7 months prior to baseline | 1 (6) | 17 (94) | 18 (45) | 1.03 | 1 | 0.31 |
| 8–12 months prior to baseline | 0 (0) | 18 (100) | 18 (45) | |||
| Missing data | 0 (0) | 4 (100) | 4 (10) | |||
| Number of concussions in previous 12 months† | ||||||
| 1 | 0 (0) | 18 (100) | 18 (45) | 0.84 | 1 | 0.36 |
| 2+ | 1 (4) | 21 (96) | 22 (55) | |||
Missing data refers to baseline questionnaire player characteristics or if the participant played the last game of the season and therefore missing return-to-play compliance data.
↵* Concussion sustained in the 12 months prior to entering the study in any football code.
↵† Only participants answering ‘yes’ to a history of concussion in the previous 12 months were included in this variable.