highly significantp < 0.0001
There were highly significant correlations between PCF and both PEF (Pearson r = 0.81; p < 0.0001) and FVC (Pearson r = 0.67; p < 0.0001), with the strongest correlation between PCF and PEF ( Figure 2 ).
There were highly significant correlations between PCF and both PEF (Pearson r = 0.81; p < 0.0001) and FVC (Pearson r = 0.67; p < 0.0001), with the strongest correlation between PCF and PEF ( Figure 2 ).