As reported in Fig. 1b, we did not found any significant difference in IL-32 sera levels when stratifying the patients according to disease subsets [118.1 pg/ml (74.3–147.5) in lcSSc-PAH patients vs 91.6 pg/ml (55.4–185.6) in dcSSc-PAH patients, p = 0.4; 0 pg/ml (0–7.2) in lcSSc patients without PAH vs 3.1 pg/ml (0–9.9) in dcSSc patients without PAH, p = 0.3]. The gene discussed is IL32; the disease is pulmonary arterial hypertension.