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Table 1 Baseline characteristics of participants.

From: Intravenous Vitamin C administration reduces fatigue in office workers: a double-blind randomized controlled trial

  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
  1. †p value from Chi-square test, ‡p value from independent t test, BMI: body mass index