Table 1.
Demographic and spirometric characteristics of study subjects
| Variables | Mean | Std |
|---|---|---|
| Age (y) |
72,03 |
8,08 |
| Height (cm) |
162,14 |
8,93 |
| Weight (kg) |
67,05 |
11,54 |
| BMI (Kg/m2) |
25,53 |
3,49 |
| FVC (l) |
3,28 |
0,89 |
| FVC (% predicted) |
123,10 |
20,86 |
| FEV1 (l) |
2,37 |
0,64 |
| FEV1 (% predicted) |
89,31 |
17,02 |
| FEV1/FVC |
72,69 |
6,82 |
| MEF (l) |
2,84 |
1,14 |
| MEF (% predicted) |
110,09 |
40,98 |
| TLC (l) |
5,85 |
1,17 |
| TLC (% predicted) |
110,95 |
15,21 |
| RV (l) |
2,58 |
0,61 |
| RV (% predicted) |
117,13 |
26,21 |
| FRC (l) |
3,28 |
0,73 |
| FRC (% predicted) |
111,87 |
22,64 |
| CV (l) |
2,91 |
0,80 |
| dN2 (% slope) | 3,02 | 2,24 |
Note. Data are means ± standard deviations for quantitative variables.Percentages are expressed as a ratio of measured to predicted values. FVC = forced vital capacity, FEV1 = forced expiratory volume in 1 second, MEF = mid forced expiratory flow, TLC = total lung capacity, RV = residual volume, FRC = functional residual capacity, CV = closing volume, dN2 = phase III nitrogen slope.