highly significantp < 0.001
Notably, the FEV 1 /FVC ratio showed a highly significant decrease in smoking individuals (77.83 ± 7.17) compared with nonsmoking individuals (81.02 ± 7.55; p < 0.001).
Notably, the FEV 1 /FVC ratio showed a highly significant decrease in smoking individuals (77.83 ± 7.17) compared with nonsmoking individuals (81.02 ± 7.55; p < 0.001).
Airway ratios The FEV 1 /FVC ratio in smoking individuals near industrial zones (76.70 ± 8.00) was lower than those in the low exposure group (79.45 ± 7.22), although this difference did not reach statistical significance (p = 0.181).