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Pulmonary Function and Stage of COPD in the FLOW Cohort
| Measure | COPD (n=1202) | Referents (n=302) | P value for comparison |
|---|---|---|---|
| FEV1 (liters) | 1.79 (0.78) | 2.17 (0.66) | <0.0001 |
| FEV1% predicted | 62% (23) | 96% (13) | <0.0001 |
| FVC | 2.93 (0.98) | 3.55 (0.87) | <0.0001 |
| FVC % predicted | 79% (20) | 96 (14%) | <0.0001 |
| FEV1/FVC | 0.61 (0.15) | 0.78 (0.04) | <0.0001 |
Mean (sd)
