Table 4 Comparisons of potential predictor variables for those who did and did not receive a diagnosis of concussion following the use of the CIR
From: A video review of multiple concussion signs in National Rugby League match play
Predictor variable | Concussion diagnosis (n = 60) | No concussion diagnosis (n = 96) | p value |
|---|---|---|---|
Observed sign: N (%) present | |||
Unresponsiveness or possible loss of consciousness* | 24 (40) | 26 (27) | .111 |
Gait ataxia | 35 (58) | 52 (54) | .484 |
Vacant stare* | 45 (75) | 48 (50) | .009 |
Clutch or shake head* | 38 (63) | 72 (75) | .105 |
Slow to get up | 60 (100) | 93 (97) | .285 |
Seizure* | 3 (5) | 0 (0) | .055 |
Injury characteristic: N (%) present | |||
Anticipated the oncoming hit* | 53 (88) | 73 (76) | .063 |
Low tackle height | 11 (18) | 18 (19) | .888 |
Athlete characteristics: mean (SD) | |||
Age (years) | 26.2 (3.6) | 26.6 (3.6) | .487 |
Injured athlete height (cm) | 186.2 (5.1) | 186.2 (5.3) | .975 |
Injured athlete mass (kg) | 101.3 (8.5) | 100.8 (9.0) | .694 |
Defenders involved in the tackle (number)* | 2.1 (0.9) | 2.3 (0.8) | .078 |
Primary tackler height (cm) | 186.9 (5.1) | 186.1 (5.9) | .351 |
Primary tackler mass (kg) | 102.5 (9.0) | 102.5 (10.9) | .965 |