Table 2.
RPQ Total Score and Number of Symptoms Endorsed by Time and Group
| TBI | OTC | FC | |
|---|---|---|---|
| 2 weeks | |||
| n | 1746 | 238 | 298 |
| Total score | |||
| Mean (SD) | 18.42 (14.76) | 7.74 (8.47) | 3.84 (7.53) |
| Median (IQR) | 16 (6, 28) | 6 (2, 11) | 0 (0, 4) |
| No. endorsed | |||
| Mean (SD) | 6.86 (4.7) | 3.12 (2.96) | 1.58 (2.89) |
| Median (IQR) | 7 (3, 11) | 2.5 (1, 5) | 0 (0, 2) |
| 3 months | |||
| n | 1718 | 219 | 275 |
| Total score | |||
| Mean (SD) | 14.15 (14.53) | 5.72 (8.17) | 3.27 (6.45) |
| Median (IQR) | 9 (2, 24) | 2 (0, 8) | 0 (0, 4) |
| No. endorsed | |||
| Mean (SD) | 5.29 (4.86) | 2.28 (2.96) | 1.35 (2.46) |
| Median (IQR) | 4 (1, 9) | 1 (0, 3) | 0 (0, 2) |
| 6 months | |||
| N | 1626 | 199 | 279 |
| Total score | |||
| Mean (SD) | 13.04 (14.39) | 5.37 (8.83) | 4.72 (8.44) |
| Median (IQR) | 8 (0, 21) | 2 (0, 7) | 0 (0, 5) |
| No. endorsed | |||
| Mean (SD) | 4.93 (4.82) | 2.19 (3.25) | 1.99 (3.33) |
| Median (IQR) | 4 (0, 9) | 1 (0, 3) | 0 (0, 2) |
| 12 months | |||
| n | 1514 | 188 | 256 |
| Total score | |||
| Mean (SD) | 12.48 (14.06) | 5.59 (9.89) | 4.98 (8.22) |
| Median (IQR) | 8 (0, 20) | 0 (0, 6) | 2 (0, 6) |
| No. endorsed | |||
| Mean (SD) | 4.7 (4.7) | 2.19 (3.52) | 2.05 (3.13) |
| Median (IQR) | 3 (0, 8) | 0 (0, 3) | 1 (0, 3) |
RPQ, Rivermead Post-Concussion Symptoms Questionnaire; TBI, traumatic brain injury group; OTC, orthopedic trauma control group; FC, friend control group.