Table 3.
Spirometry and oximetry values between sawmill workers and control.
| Variables | Sawmill workers (mean ± SD) | Control (mean ± SD) | p Value |
|---|---|---|---|
| FVC (L) | 2.32 ± 0.47 | 3.10 ± 0.44 | <0.001 |
| FVC (%) | 65.34 ± 10.23 | 76.95 ± 12.21 | <0.001 |
| FEV1 (L) | 2.35 ± 0.69 | 3.03 ± 0.35 | <0.001 |
| FEV1 (%) | 72.21 ± 13.75 | 85.76 ± 9.88 | <0.001 |
| PEF (L/s) | 6.54 ± 2.05 | 8.62 ± 1.37 | <0.001 |
| PEF (%) | 82.80 ± 20.19 | 104.18 ± 17.03 | <0.001 |
| FEV1/FVC (%) | 92.67 ± 4.62 | 96.36 ± 3.45 | <0.001 |
| FEF25 (L/s) | 5.73 ± 2.03 | 7.21 ± 1.16 | <0.001 |
| FEF75 (L/s) | 2.05 ± 0.61 | 2.80 ± 0.57 | <0.001 |
| FEF2575 (L/s) | 3.52 ± 1.05 | 4.54 ± 0.94 | <0.001 |
| Heart rate (bpm) | 84.88 ± 14.91 | 76.47 ± 9.72 | <0.001 |
| Oxygen saturation (%) | 97.94 ± 2.37 | 98.34 ± 1.02 | 0.124 |
Note: t Test was performed on spirometry and oximetry parameters. Values are represented as mean ± standard deviation.
Abbreviations: FVC, forced vital capacity; FEV1, forced expiratory volume in 1 s; FEV1%, the ratio of FEV1/FVC; PEF, peak expiratory flow; FEF25, 25% flow of the FVC; FEF75, 75% flow of the FVC; FEF2575, average flow between 25% and 75% of the FVC.