Table 1 Characteristics of the subjects included from the LifeLines, SAPALDIA and Rotterdam cohort studies
LifeLines (identification) | SAPALDIA (replication) | Rotterdam Study 1 (replication) | |
|---|---|---|---|
N with complete data | 10,817 | 1276 | 1156 |
ETS exposed (≥1 h/day), n (%) | 2473 (23) | 296 (23) | 219 (19) |
FEV1 (ml), mean (sd) | 3401 (825) | 3153 (864) | 2199 (653) |
FEV1% of predicteda, mean (sd) | 102 (14) | 96 (16) | 104 (23) |
FEV1/FVC (%), mean (sd) | 76 (7) | 74 (8) | 75 (8) |
FEV1/FVC < 70%, n (%) | 1600 (15) | 327 (26) | 228 (20) |
GOLD2+, n (%) | 417 (4) | 134 (11) | 133 (12) |
Use of medication for obstructive airway diseases#, n (%) | 676 (6) | 164 (18)$ | 106 (9) |
Males, n (%) | 4473 (41) | 611 (48) | 495 (43) |
Age, median (min-max) | 47 (18–88) | 52 (29–72) | 78 (72–95) |
Ever smokers, n (%) | 6266 (58) | 703 (55) | 771 (67) |
Pack years in ever smokers, median (min-max) | 10 (0–100) | 12 (0–130) | 18 (0–145) |