Fig. 2
From: Biomarkers of interstitial lung disease associated with primary Sjögren's syndrome
Distribution of risk scores between different ILA subcategories. KL-6 and disease duration were fit into a logistic regression model, yielding an equation for calculation of a combined risk score = − 3.824 + 0.006*KL-6 + 0.150*disease duration. P values for ILA score 0 vs. ILA score 1, ILA score 0 vs. ILA score 2 and ILA score 0 vs. ILA score 3 were 0.4558, 0.004 and < 0.0001, respectively. The presented p values were determined by the non-parametric Mann–Whitney U test