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Table 2 Mean values ± standard deviations and proportions of baseline characteristics in the intervention and control groups at the baseline examination

From: Effects of a traditional herbal medicine on peripheral blood flow in women experiencing peripheral coldness: a randomized controlled trial

Baseline variables

Intervention

Control

p value

 Number

28

30

 

 Age, year

49.4 ± 14.8

50.1 ± 13.2

0.86

 Body mass index, kg/m2

20.6 ± 2.5

20.4 ± 3.0

0.72

 Current smokers, %

7.1

3.3

0.52

 Past smokers, %

14.3

16.7

0.81

 Ethanol intake, g/day

2.7 ± 6.4

3.1 ± 6.5

0.80

 Habitual exercise, %

67.9

56.7

0.39

 Perceived mental stress, %

39.3

43.3

0.76

 Systolic blood pressure, mm Hg

111.1 ± 17.4

106.9 ± 13.0

0.29

 Diastolic blood pressure, mm Hg

66.3 ± 10.2

62.8 ± 6.4

0.12

 Medication use for hypertension, %

10.7

3.3

0.28

 Total cholesterol, mg/dl

209.3 ± 27.3

213.0 ± 42.3

0.69

 LDL-cholesterol, mg/dl

117.9 ± 25.2

124.2 ± 37.8

0.46

 HDL-cholesterol, mg/dl

72.7 ± 12.5

70.8 ± 14.2

0.60

 Triglycerides, mg/dl

78.9 ± 42.3

71.2 ± 28.8

0.42

 Blood glucose, mg/dl

92.3 ± 4.8

91.7 ± 7.4

0.76

 hs C-reactive protein, mg/L

44.6 ± 47.7

56.2 ± 151.7

0.70

 Red blood cell counts, ×104/mm3

404.7 ± 24.7

409.5 ± 32.1

0.53

 Hemoglobin, g/dl

12.8 ± 1.2

12.8 ± 0.8

0.99

 White blood cell counts ×102/mm3

49.0 ± 13.5

43.7 ± 10.8

0.11

 Menopause, %

42.9

46.7

0.78

 Fatigue of the eye, %

82.1

66.7

0.18

 Dizziness, %

50.0

36.7

0.31

 Ear ringing, %

25.0

16.7

0.65

 Headache, %

39.3

33.3

0.64

 Shoulder stiffness, %

78.6

83.3

0.65

 Hot flash, %

28.6

36.7

0.52

 Cough, %

32.1

26.7

0.65

 Diarrhea, %

25.0

13.3

0.26

 Constipation, %

57.1

33.3

0.07

 Pain in knee or lower back, %

64.3

73.3

0.46

 Palpitation, %

35.7

20.0

0.18

 Short of breath, %

35.7

33.3

0.85

 Swelling of lower extremities and/or eyelids, %

64.3

43.3

0.11

 Finger chilliness, %

64.3

53.3

0.41

 Foot chilliness, %

67.9

70.0

0.86

 Back chilliness, %

46.4

36.7

0.46

 Whole body chilliness, %

10.7

10.0

0.93

 Peripheral blood flow, PUa)

81.9 ± 44.5

78.8 ± 52.8

0.82

 Skin temperature, °C

29.9 ± 1.24

29.6 ± 1.43

0.61

  1. a) PU: perfusion units = (number of moving blood cells in the measured contents) × (average velocity of blood cells).