Table 2.
Time Between Visits and State-Trait Anxiety Inventory Assessments in the Concussion and Matched Control Groups
| Time | Concussion Group (n = 39)a | Control Group (n = 39)a | t76 Value | P Value | Cohen d Effect Size |
|---|---|---|---|---|---|
| Date of injury to day 0b | 2.2 ± 0.8 | NA | NA | NA | NA |
| Day 0 to 5c | 5.5 ± 1.0 | 5.8 ± 1.1 | −1.42 | .16 | −0.3 |
| Day 5 to full medical clearance | 11.6 ± 14.4 | 13.4 ± 14.8 | −0.53 | .59 | −0.1 |
Abbreviation: NA, not applicable.
a
Values are mean ± SD.
b
Day 0 indicates within 72 h of injury.
c
Day 5 indicates 5 days (±1 day) postenrollment.