Fig. 3
From: Biomarkers of pulmonary hypertension in patients with scleroderma: a case–control study
Placental growth factor (PlGF) levels are associated with severity of peripheral vascular manifestations in scleroderma. a PlGF levels correlate with Raynaud’s phenomenon (RP) severity as measured with the Raynaud’s Medsger severity scale (ρ = 0.29, p = 0.02; n = 71). b Soluble fms-like tyrosine kinase-1 (sFlt-1) levels correlate with Raynaud’s severity (ρ = 0.23, p = 0.04; n = 77)