Case
(N=1,386)
Control (N=5,205) Total
(N=6,591)
Age (years) 50.3±15.4 49.8±10.2 49.9±11.5
Female sex, n (%) 766 (55.2) 2,295 (44.1) 3,061 (46.4)
BMI 24.3±3.6 23.1±3.1 23.3±3.2
Smoking, n (%)
Never 761 (54.9) 1822 (35.0) 2583 (39.2)
Former 384 (27.7) 982 (18.9) 1366 (20.7)
Current 199 (14.4) 558 (10.7) 757 (11.5)
Unknown 42 (3.0) 1,843 (35.4) 1,885 (28.6)
FEV1 pred pre-BD (%) 78.8±20.2 101.8±12.2 97.3±16.8
FEV1/FVC (%) 70.7±0.1 82.0±0.1 79.4±0.1