Table 1

Baseline characteristics of participants.

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


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

Suh et al. Nutrition Journal 2012 11:7   doi:10.1186/1475-2891-11-7

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