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Table 1 Baseline characteristics of the study participants

From: Comparative effects of vitamin D and vitamin C supplementations with and without endurance physical activity on metabolic syndrome patients: a randomized controlled trial

Variables

Groups (n = 141)

P valueg

Vit D (n = 24)a

Vit D + PA (n = 21)b

Vit C (n = 26)c

Vit C + PA (n = 23)d

Placebo (n = 25)e

Placebo + PA (n = 22)f

Age (years)

40.5 ± 5.9

40.4 ± 5.9

41.2 ± 5.8

40.8 ± 5.8

42.6 ± 5.6

41.6 ± 6.4

.812

Female (%)

67

67

62

70

48

59

.725

Family history of obesity (%)

75

81

65

65

76

50

.314

Family history of DM (%)

50

67

46

35

60

41

.321

Family history of BP (%)

58

62

46

57

60

41

.753

Weight (kg)

84.2 ± 16.7

81.7 ± 9.6

81 ± 13.2

79.7 ± 13.6

82.3 ± 14

74.9 ± 12.7

.354

BMI (kg/m2)

33.1 ± 5.9

33.4 ± 4.3

32 ± 6.1

32.3 ± 5.9

32.8 ± 4.3

30.1 ± 4.7

.475

WC (cm)

109.2 ± 8

108.5 ± 7.7

108.2 ± 10.4

107.8 ± 8.7

107.6 ± 9.6

111.5 ± 10.2

.824

FPG (mg/dL)

108 ± 17.1

106 ± 11.8

106.6 ± 19.9

104 ± 13.7

110.6 ± 17.2

106.2 ± 18.1

.871

SBP (mmHg)

127.1 ± 11.5

129 ± 12.7

130.2 ± 12

129 ± 11.4

125.6 ± 14.5

128.6 ± 10.8

.810

DBP (mmHg)

79.8 ± 9.5

83.6 ± 9.4

81.3 ± 8.3

79.3 ± 7.1

80 ± 6.9

82.5 ± 5.9

.421

TC (mg/dL)

173.5 ± 60.8

194.7 ± 32.2

174.8 ± 41.5

178.3 ± 29.8

185.9 ± 39

149 ± 35.8

.326

TG (mg/dL)

229.3 ± 113.8

184.5 ± 98.5

268.4 ± 107.2*

176.1 ± 87.4

147.4 ± 43

161.7 ± 70.1

.001

LDL-C (mg/dL)

120.7 ± 64.4

149.6 ± 35.8

114.5 ± 47.5

135.5 ± 32.7

150.4 ± 39.8

153.5 ± 38.4

.007

HDL-C (mg/dL)

34.9 ± 17.3

40.9 ± 14.4

33 ± 13.5

37.6 ± 11**

30 ± 8.5

40.8 ± 16.5

.046

Vit D (ng/mL)

10.8 ± 2.8

10.4 ± 3.2

12.2 ± 4

11 ± 4

.434

Vit C (ng/mL)

.9 ± .4

.8 ± .3

1 ± .3

.9 ± .3

.320

  1. Data are mean ± standard deviation (SD)
  2. Vit D, vitamin D; PA, physical activity; Vit C, vitamin C; DM, diabetes mellitus; BP, blood pressure; BMI, body mass index; WC, waist circumferences; DM, diabetes mellitus
  3. *P < .05 compared with the placebo group, using Tukey’s test
  4. **P < .05 compared with the vitamin D and “placebo plus physical activity” groups, using Tukey’s test
  5. P < .05 compared with the other groups, using Tukey’s test
  6. aReceiving 2000 IU vitamin D per day
  7. bReceiving 2000 IU vitamin D per day plus 30 min endurance physical activity
  8. cReceiving 500 mg vitamin C per day
  9. dReceiving 500 mg vitamin C per day plus 30 min endurance physical activity
  10. eReceiving one placebo per day
  11. fReceiving one placebo per day plus 30 min endurance physical activity
  12. gObtained from ANOVA or Chi square test, where appropriate