Fig. 3From: Hypochromic red cells as a prognostic indicator of survival among patients with systemic sclerosis screened for pulmonary hypertensionKaplan-Meier analysis of the multivariable risk set. DLCO ≤ 65% predicted and hypochromic red cells > 2% were identified as independent prognostic predictors (p < 0.0001)Back to article page