Table 1.
Participant characteristics.
| All participants (n = 139) | <1 month recovery (n = 49)a | Slow to recover (>1 month) (n = 79)a | |
|---|---|---|---|
| Age, mean (SD) years | 13.4 (2.87) | 12.3 (2.72) | 13.5 (2.79) |
| Sex, n (%) | |||
| Males | 64 (46.0) | 26 (53.0) | 29 (36.7) |
| Females | 75 (53.9) | 23 (46.9) | 50 (63.2) |
| Time from Injury at Recruitment, median (Q1, Q3), days | 7.8 (3.0, 33.0) | 4.63 (1.82, 7.8) | 19.9 (5.7, 75.5) |
| Cause of Injury, n (%) | |||
| Sports-related | 103 (74.1) | 39 (79.5) | 55 (69.6) |
| Fall | 22 (15.8) | 7 (14.2) | 18 (22.7) |
| MVA | 4 (3.0) | 0 (0.0) | 2 (2.5) |
| Other | 10 (6.2) | 3 (6.1) | 4 (5.0) |
| Number of Previous Concussions, n (%) | |||
| 0 | 81 (58.3) | 39 (79.5) | 40 (50.6) |
| 1–2 | 46 (33.3) | 6 (12.2) | 24 (30.3) |
| 3+ | 12 (15.8) | 4 (8.1) | 15 (18.9) |
| Total PCSS Score at baseline, mean (SD) | 40.1 (24.8) | 30.7 (18.6) | 43.4 (25.6) |
| Stratum Information based on Symptom Resolution, n (%) | |||
| Symptom free within 1 month | 49 (35.2) | – | – |
| Symptom free within 3 months | 40 (35.2) | – | – |
| Symptoms last longer than 90 days | 23 (16.5) | – | – |
| Never reached symptom resolution during study (i.e., 6 month follow-up)a | 16 (11.5) | – | – |
a
Missing data regarding symptom duration for 11 participants due to withdrawal from study or pending data collection.