PFT measurements | Non-smokers (n=52) | Current or ex-smokers (n=16) |
FEV1 | 95.5 (24.6) | 85.1 (20.4) |
FVC | 100.5 (21.7) | 93.4 (18.1) |
FEV1/FVC | 78.9 (10.2) | 74.8 (10.9) |
FEF25% | 68.75 (36.9) | 52.7 (33.5) |
FEF50% | 78.7 (36.9) | 65.6 (33.4) |
FEF75% | 86.17 (31.3) | 70.6 (32.1) |
FEF25–75% | 75.8 (35.7) | 63.5 (33.8) |
RV | 115 (37.1) | 107.2 (30) |
TLC | 100.3 (19.5) | 105.8 (27.8) |
TLCO | 89.1 (29.8) | 87.8 (31.6) |
TLCO/VA | 105.6 (20.7) | 97.4 (19.4) |
There was no significant difference between the two groups studied. Abbreviations as shown in table 2.