Skip to main content

Table 1 Demographic and clinical data

From: Comparative analysis of COPD associated with tobacco smoking, biomass smoke exposure or both

 

Control Subjectsn = 52

TS COPDn = 49

BS COPDn = 31

TS + BS COPD n = 46

Sex, Male (%)/Female (%)

15(29)/37(71)

35(71)/14(29)

12(39)/19(61)

26(63)/20(37)

Age, years

70.34 ± 5.95

69.41 ± 8.69

72.29 ± 9.49

69.93 ± 7.19

Smoking history, pack-years

41.57 ± 25.62

55.46 ± 47.12

Biomass exposure, hour-years

340.90 ± 206.09

345.15 ± 193.16

Scolarship, years

13.21 ± 2.06

7.56 ± 4.25a

5.20 ± 3.59a, b

6.09 ± 3.93a, b

BMI, kg/m2

30.09 ± 5.54

27.67 ± 5.08a

26.57 ± 3.06a

27.35 ± 5.69a

Exacerbations in the previous year

1.10 ± 1.37

0.58 ± 0.42

0.69 ± 1.29

FEV1, % predicted

110.19 ± 17.46

56.88 ± 19.37a, c

68.09 ± 32.30a

53.79 ± 18.67a, c

FEV1/FVC, % predicted

103.87 ± 8.13

67.75 ± 14.00a,c

74.16 ± 10.69a

67.56 ± 15.97a, c

DLCO, % predicted

81.52 ± 21.21

66.60 ± 19.82a

73.73 ± 17.16

61.22 ± 24.98a, c

Oxygen Saturation, %

96.91 ± 1.36

92.65 ± 4.55a

93.94 ± 4.04a

90.52 ± 4.90a, b, c

6 MW, meters

492.48 ± 78.51

355.96 ± 163.02a

375.29 ± 143.75a

344.09 ± 161.12a

mMRC

2.38 ± 1.47

2.37 ± 1.16

2.67 ± 1.03

CAT

15.49 ± 8.21

14.84 ± 6.69

13.18 ± 6.69

BODE

2.88 ± 5.71

2.71 ± 6.35

3.87 ± 7.72

  1. Data presented as mean ± standard deviation, unless otherwise indicated. Definition of abbreviations: BMI body-mass index, FEV1 forced expiratory volume in 1 s, FVC forced vital capacity. DLCO carbon monoxide diffusing capacity, 6 MW 6 min walking test, mMRC modified Medical Research Council scale CAT COPD assessment test, BODE Body-mass, airflow Obstruction, Dyspnea and Exercise index
  2. aDifferent from control subjects (p < 0.05, by ANOVA)
  3. bDifferent from TS COPD (p < 0.05, by ANOVA)
  4. cDifferent from BS COPD (p < 0.05, by ANOVA)