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Table 3 Baseline characteristics of the patients

From: Effects of comprehensive therapy based on traditional Chinese medicine patterns in stable chronic obstructive pulmonary disease: a four-center, open-label, randomized, controlled study

Characteristics

Full analysis set

Per-protocol analysis set

 

Trial n=175

Control n=175

t/χ 2 /Z

P

Trial n=155

Control n=151

t/χ 2 /Z

P

Age (years)

66.33 ± 9.63

64.28 ± 9.42

−0.935

0.351

62.74 ± 9.87

64.66 ± 8.92

−1.778

0.076

Course of diseaseâ–³

169.56 ± 290.63

161.07 ± 128.45

0.353

0.725

166.86 ± 305.92

163.18 ± 131.84

0.136

0.892

BMIâ–²

24.26 ± 11.79

23.75 ± 3.10

0.543

0.587

24.41 ± 12.54

23.74 ± 3.09

0.643

0.521

Exacerbationâ–¡

        

Frequency (times)

3.26 ± 2.27

2.94 ± 2.05

1.378

0.169

3.32 ± 2.31

2.95 ± 1.91

1.523

0.129

Duration (days)

2.78 ± 2.00

2.73 ± 1.97

0.228

0.820

2.82 ± 2.08

2.75 ± 1.81

0.319

0.750

Lung functionâ– 

       

FVC (liters)

2.91 ± 0.95

2.81 ± 0.89

0.953

0.341

2.95 ± 0.97

2.81 ± 0.92

1.239

0.216

FEV1(liters)

1.46 ± 0.57

1.35 ± 0.46

1.465

0.144

1.46 ± 0.57

1.35 ± 0.46

1.747

0.082

FEV1%

49.89 ± 10.84

49.58 ± 12.07

0.244

0.807

49.94 ± 10.95

49.58 ± 12.36

0.266

0.790

Gender

        

Male

122

131

1.556

0.212

106

116

2.732

0.098

Female

54

43

49

35

Smoking status

        

Currently smoking

103

114

1.817

0.178

89

102

3.346

0.067

None-smoking

73

60

66

49

Smoking pack-years

380.91 ± 158.26

366.47 ± 150.32

0.686

0.493

377.08 ± 164.08

372.47 ± 154.47

0.199

0.843

GOLD classification

      

GOLD 1

14

6

−0.093

0.926

13

6

−0.369

0.712

GOLD 2

68

80

61

66

GOLD 3

94

88

  

81

79

  
  1. â–³The course of disease was calculated in months.
  2. â–²The body-mass index (BMI)is the weight in kilograms divided by the square of the height in meters.
  3. â–¡Exacerbations during the 12 months before screening were self-reported.
  4. â– Clinical data are from visit 1 (the screening visit). FEV1 denotes forced expiratory volume in 1 second, and FVC is forced vital capacity.