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Table 1 Baseline characteristics of COPD subjects included in the meta-analysis

From: DNAH5 is associated with total lung capacity in chronic obstructive pulmonary disease

 

COPDGene

ECLIPSE

GenKOLS

N

2,653

1,464

426

Age, yrs

64.7 (8.2)

63.5 (7.0)

64.3 (9.3)

Sex, male %

56.0

65.8

62.9

Current smoker, %

34.9

35.2

50.2

Pack-years of cigarette smoking

56.2 (27.9)

49.7 (26.7)

30.9 (18.2)

Height, cm

169.7 (9.4)

169.4 (9.0)

170.7 (8.7)

Body mass index, kg/m2

28 (6.1)

26.6 (5.6)

25.6 (4.8)

FEV1 % predicted

50 (17.9)

47.4 (15.5)

52.4 (17.0)

FVC % predicted

76.5 (17.0)

86.0 (19.9)

80.0 (15.3)

FEV1/FVC

0.49 (0.13)

0.44 (0.11)

0.52 (0.12)

Total lung capacity (TLC)CT, L

6.19 (1.4)

6.20 (1.44)

5.57 (1.29)

TLC % predicted

102.8 (16.6)

101.7 (18.2)

90.9 (18.8)

  1. Data are presented as mean (SD) or percentage, as appropriate.