Smoking habit | No | FVC in Litre | FVC% | FEV1 in Litre | FEV1% | PEFR Litre/Sec | |
Non-smoker | 55 | 3.96 ± 0.39 | 88.85 ± 7.27 | 2.91 ± 0.63 | 74.93 ± 15.48 | 7.26 ± 1.005 | |
Smoker | 53 | 3.88 ± 0.48 | 87.40 ± 8.55 | 2.44 ± 0.71 | 62.72 ± 17.35 | 6.42 ± 1.01 | |
t-test | 0.93 | 0.96 | 3.58 | 3.86 | 4.31 | ||
p value | 0.356 | 0.341 | 0.001 | 0.0001 | 0.0001 | ||