Research Paper Volume 12, Issue 5 pp 4371—4378

Vitamin D levels are prognostic factors for connective tissue disease associated interstitial lung disease (CTD-ILD)

Figure 2. Correlation between vitamin D and lung function changes in patients with CTD-ILD. (A) The Δ25(OH)D(%) was positively correlated with ΔFVC(%) (r=0.559, P=0.001); (B) The Δ25(OH)D(%) was positively correlated with ΔFEV1(%) (r=0.559, P=0.001); (C) The Δ25(OH)D(%) was positively correlated with ΔDLCO-SB(%)(r = 0.559, P=0.001).