Table 3.
Respiratory indices
| PFT parameters | Biomass | Nonbiomass (LPG group) | P (comparing the biomass fuel group with the LPG group) | ||||
|---|---|---|---|---|---|---|---|
| Age 18-40 years (n=61) | >40 years (n=109) | Total group (n=170) | Age 18-40 years (n=89) | >40 years (n=51) | Total group (n=140) | ||
| FVC (%) | 86.59±14.20 | 73.22±16.07* | 78.02±16.67 | 94.57±6.84 | 82.73±14.13* | 90.26±11.58 | <0.001 |
| FEV1 (%) | 77.62±20.73 | 43.89±16.93* | 55.99±24.48 | 91.27±12.23 | 71.88±21.71* | 84.21±18.76 | <0.001 |
| FEV1/FVC (%) | 82.28±8.16 | 58.95±14.48* | 67.32±16.84 | 84.58±4.85 | 79.51±9.63* | 82.74±7.37 | <0.001 |
*Significantly different compared to the 18-40 years age group. LPG=Liquefied petroleum gas, FVC=Forced vital capacity, FEV1=Forced expiratory volume in 1 s, PFT=Pulmonary function tests