Figure 1From: Alterations of serum biomarkers associated with lung ventilation function impairment in coal Workers: A cross-sectional study Comparisons of Lung Ventilation Functional Parameters among Patients with CWP and two Control Groups. The percent predicted values of FVC, FEV1, FEF50, FEF75, and FEF25-75 in patients with CWP were significantly decreased when compared with the respective parameters in asymptomatic miners: compared with asymptomatic miners, p < 0.05.Back to article page