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Table 1 Characteristics of COPDGene, ECLIPSE, and GenKOLS Subjects included in genome-wide association analysis. For continuous variables, the mean is given first followed by the standard deviation

From: A genome-wide association study identifies risk loci for spirometric measures among smokers of European and African ancestry

  COPDGene NHW COPDGene AA ECLIPSE GenKOLS
Sample size (#COPD cases) 6659 (2812) 3260 (821) 1942 (1764) 1671 (863)
Gender (% male) 47.73 % 44.79 % 66.17 % 58.71 %
Age (years) 62.0 (8.9) 54.6 (7.2) 63.1 (7.6) 60.7 (11.1)
Height (cm) 169.7 (9.5) 171.0 (9.7) 169.7 (9.1) 170.8 (8.9)
BMI (kg/m2) 28.7 (6.0) 29.07 (6.7) 26.8 (5.5) 25.9 (4.6)
Pack-years 47.2 (26.0) 38.3 (21.6) 48.6 (27.7) 26.0 (17.4)
Current Smoking (%) 38.9 % 80.0 % 34.8 % 43.8 %
FEV1 (L) 2.20 (0.95) 2.30 (0.86) 1.50 (0.78) 2.38 (1.10)
FEV1 (% predicted) 74.0 (26.0) 82.0 (23.9) 53.1 (23.2) 72.2 (26.2)
FEV1/FVC 0.64 (0.17) 0.72 (0.14) 0.48 (0.15) 0.65 (0.17)
  1. Notes: FEV1, FEV1 (% predicted), and FEV1/FVC are all based on post-bronchodilator spirometry