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Table 1 Descriptive statistics of the study population

From: Smoking cessation can improve quality of life among COPD patients: Validation of the clinical COPD questionnaire into Greek

  

COPD group

 

Control group (n = 55)

All stages of COPD (n = 93)

Stage I: Mild COPD (n = 22)

Stage II: Moderate COPD (n = 65)

Stage III: Severe COPD (n = 6)

 

% (n)

% (n)

% (n)

% (n)

% (n)

Gender(male)

63.6% (35)

72% (67)

81.8% (18)

69.2% (45)

66.7% (4)

 

Mean ± SD

Mean ± SD

Mean ± SD

Mean ± SD

Mean ± SD

Age (mean)

60.45 ± 11.46

66.35 ± 9.68

55.14 ± 7.03

68.80 ± 6.57

81 ± 8.65

CCQ Total Score

0.05 ± 0.11

1.437 ± 1.19

1.09 ± 1.17

1.58 ± 1.19

1.17 ± 1.20

CCQ Symptoms

0.05 ± 0.19

1.357 ± 1.16

1.15 ± 1.07

1.44 ± 1.20

1.25 ± 1.20

CCQ Functional state

0.05 ± 0.10

1.720 ± 1.49

1.25 ± 1.47

1.92 ± 1.48

1.25 ± 1.46

CCQ Mental state

0.05 ± 0.16

1.032 ± 1.18

0.66 ± 1.24

1.18 ± 1.17

0.83 ± 0.88

FEV 1

97.65 ± 8.70

70.06 ± 11.1

82.66 ± 2.95

67.94 ± 7.99

46.83 ± 3.93

FEV1/FVC

89.42 ± 7.85

62.90 ± 7.7

69.43 ± 2.17

60.75 ± 7.75

62.27 ± 7.63

SF-12

3.10 ± 0.33

2.909 ± 0.36

3.14 ± 0.33

2.87 ± 0.33

2.49 ± 0.26

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