Figure 1
From: Reproducibility of pulmonary function tests in patients with systemic sclerosis
BLAND ALTMAN test FVC (L). Graphs (A–C) are created using data from all patients, graphs (D–F) are created using data from non-ILD SSc patients and graphs (G–I) are created using data from -ILD SSc patients. Plots (A,D,G) represent the difference between FVC (L) at T0 and H3 vs mean of FVC (L) at T0 and H3. Plots (B,E,H) represent the difference between FVC (L) at T0 and D15 vs mean of FVC (L) at T0 and D15. Plots (C,F,I) represent the difference between FVC (L) at T0 and D30 vs mean of FVC (L) at T0 and D30. Dotted line represent the difference 0 and the 95% of limit agreement of difference between the two measurements.
