Table 1 Baseline characteristics of participants.
| Â | Vitamin C Group (n = 70) | Placebo Group (n = 71) | P value |
|---|---|---|---|
Sex, n |  |  | 0.559†|
   Male (%) | 31 (44.3) | 28 (39.4) |  |
   Female (%) | 39 (55.7) | 43 (60.6) |  |
Age, years (SD) | 30.4 (5.7) | 31.2 (5.8) | 0.427‡ |
BMI, kg/m2 (SD) | 21.5 (3.0) | 21.8 (3.1) | 0.683‡ |
Usual fatigue, n |  |  | 0.971†|
   Yes (%) | 59 (84.3) | 60 (84.5) |  |
   No (%) | 11 (15.7) | 11 (15.5) |  |
Smoking status, n |  |  | 0.158†|
   Smoker (%) | 21 (30.0) | 14 (19.7) |  |
   Nonsmoker (%) | 49 (70.0) | 57 (80.3) |  |
Drinking status, n |  |  | 0.448†|
   Drinker (%) | 56 (80.0) | 53 (74.6) |  |
   Nondrinker (%) | 14 (20.0) | 18 (25.4) |  |
Exercise, n |  |  | 0.495†|
   Regular (%) | 19 (27.1) | 23 (32.4) |  |
   Irregular (%) | 51 (72.9) | 48 (67.6) |  |
Sleeping hours (SD) | 6.5 (1.0) | 6.4 (0.9) | 0.296‡ |