End of season follow-up | 60-day follow-up | 30-day follow-up | Total | ||||
Injury sustained | Injury not sustained | Injury sustained | Injury not sustained | Injury sustained | Injury not sustained | ||
Outcome: subsequent time-loss* lower extremity sprain, strain or fracture | |||||||
Concussion | 160 (21%) | 606 (79%) | 136 (18%) | 630 (82%) | 91 (12%) | 675 (88%) | 766 |
Comparison Group 1: other non-concussed players from the same game | 11 124 (22%) | 40 448 (78%) | 9599 (19%) | 41 973 (81%) | 6797 (13%) | 44 775 (87%) | 51 572 |
Comparison Group 2: time-loss upper extremity injury† | 207 (26%) | 582 (74%) | 177 (22%) | 612 (78%) | 105 (13%) | 684 (87%) | 789 |
Outcome: subsequent time-loss* sprain, strain or fracture | |||||||
Concussion | 268 (35%) | 498 (65%) | 239 (31%) | 527 (69%) | 161 (21%) | 605 (79%) | 766 |
Comparison Group 1: other non-concussed players from the same game | 18 197 (35%) | 33 375 (65%) | 16 074 (31%) | 35 498 (69%) | 11 766 (23%) | 39 806 (77%) | 51 572 |
Comparison Group 2: time-loss upper extremity injury† | 311 (39%) | 478 (61%) | 267 (34%) | 522 (66%) | 165 (21%) | 624 (79%) | 789 |
*A ‘time-loss injury’ was defined as an injury that resulted in the player being restricted or limited from their normal level of participation.
†Upper extremity injury includes time-loss injuries to the arm, clavicle, elbow, fingers, forearm, hand, shoulder or wrist that resulted in a sprain, strain or fracture.