Fig. 2From: Mean pulmonary arterial pressure as a prognostic indicator in connective tissue disease associated with interstitial lung disease: a retrospective cohort studyKaplan-Meier curves for survival according to MPAP. Survival curves of patients with MPAP ≥ 20 mmHg and MPAP < 20 mmHg were compared and tested with log-rank statistics (p = 0.023)Back to article page