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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.