Table 1 Spirometry results expressed as percentage of predicted values
NHANESIII | ECSC93 | GLI12 | ||
|---|---|---|---|---|
n | Mean (SD) | Mean (SD) | Mean (SD) | |
Total | ||||
FVC (%) | 260 | 87.5 (26.7) | 98.4 (30.5) | 80.4 (22.9) |
FEV1 (%) | 260 | 87.5 (31.5) | 92.0 (33.5) | 75.8 (25.2) |
FEV1/FVC (%) | 260 | 97.7 (14.3) | 85.9 (13.9) | 92.3 (13.5) |
Female | ||||
FVC (%) | 181 | 89.5 (26.9) | 104.6 (30.5) | 81.2 (22.4) |
FEV1 (%) | 181 | 89.4 (31.6) | 97.4 (34.2) | 77.2 (24.9) |
FEV1/FVC (%) | 181 | 98.48 (13.3) | 82.2 (11.2) | 93.1 (12.5) |
Male | ||||
FVC (%) | 79 | 82.5 (25.6) | 84.2 (25.3) | 78.5 (23.9) |
FEV1 (%) | 79 | 83.3 (30.9) | 79.6 (28.4) | 72.5 (25.8) |
FEV1/FVC (%) | 79 | 96.0 (16.2) | 94.3 (15.9) | 90.6 (15.3) |