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Table 1 Demographics of COPD patients

From: Characteristics and determinants of endurance cycle ergometry and six-minute walk distance in patients with COPD

Characteristics

All patients (n = 2002)

Males (n = 1134) (57%)

Females (n = 868) (43%)

Age, yrs

66.9

(9.5)

69.0

(9.1)

64.3

(9.2)*

Weight, kg

71.9

(16.5)

77.2

(15.9)

65.0

(14.7)*

Height, m

1.68

(0.9)

1.73

(0.7)

1.62

(0.6)*

BMI, kg/m2

25.4

(5.2)

25.8

(4.9)

25.0

(5.5)*

FFMI, kg/m2

17.0

(2.4)

18.1

(2.2)

15.5

(1.8)*

FEV1, % predicted

48.2

(23.2)

47.2

(20.7)

49.6

(26.1)*

FVC, % predicted

95.9

(22.3)

93.0

(21.7)

99.7

(22.7)*

FEV1/FVC, r

39.8

(11.8)

38.9

(11.9)

40.9

(11.4)*

FRC, % predicted

150.1

(35.9)

146.3

(37.5)

154.9

(33.0)*

DLCO, % predicted

52.9

(18.1)

55.3

(30.1)

50.9

(25.7)*

PO2, kPa

9.8

(2.3)

9.8

(2.2)

9.7

(2.4)

PCO2, kPa

5.3

(1.4)

5.2

(1.2)

5.4

(1.5)

MRC dyspnea grade

3.3

(1.1)

3.3

(1.1)

3.4

(1.0)

GOLD stage I

96

(4.8)

48

(4.2)

48

(5.5)

GOLD stage II

649

(32.4)

362

(31.9)

287

(33.1)

GOLD stage III

730

(36.5)

419

(36.9)

311

(35.8)

GOLD stage IV

527

(26.3)

305

(26.9)

222

(25.6)

Receiving LTOT, n, (%)

408

(20.4)

230

(20.3)

178

(20.5)

  1. Average values are shown for exercise tests and clinical parameters. The values are reported for the entire cohort and then for men and women. Asterisk denotes significant differences (p < 0.05).