Table 2 Comparison of The PFTs parameters between the substance abusers and their matched predicted values
From: Comparative study of pulmonary functions test among different substances abusers
Parameter (Mean ± SD) | Substance abusers (n = 60) | Matched predicted values (n = 60) | P- Value |
|---|---|---|---|
FEV1 (L /m) | 2.7 ± 0.64 | 3.1 ± 0.27 | 0.221 |
FVC (L/m) | 3.4 ± 0.40 | 3.5 ± 0.28 | 0.93 |
FEV1/ FVC (%) | 77.4 ± 13.1 | 88.2 ± 2.9 | 0.001 |
PEFR (ml/sec) | 449.8 ± 66.5 | 450.1 ± 49.4 | 0.974 |