Table 1 Demographical and spirometry measurements of the reference population by gender
From: Normal spirometry prediction equations for the Iranian population
Variables | Females (414) | Males (206) |
|---|---|---|
Age; mean (SD), y | 45.54 (15.67) | 37.78 (19.56) |
Weight; mean (SD), Kg | 68.61 (16.25) | 74.88 (20.99) |
Height; mean (SD), cm | 156.18 (11.09) | 168.22 (16.27) |
BMI; mean (SD) | 27.84 (5.74) | 25.8 (5.23) |
FEV1; mean (SD), l Min–Max | 2.63 (0.65) 0.79–5.01 | 3.65 (1.04) 0.86–6.58 |
FVC; mean (SD), l Min–Max | 3.20 (0.78) 0.9 − 0.78 | 4.42 (1.24) 1.15–7.5 |
FEV1/FVC; mean (SD) Min–Max | 0.82 (0.70) 0.65–1.49 | 0.83 (0.067) 0.51-1.0 |
FEF25–75%; mean (SD), l Min–Max | 3.88 (1.29) 0.49–8.13 | 1.51 (0.523) 0.55–2.22 |