Fig. 4
From: Risk assessment in precapillary pulmonary hypertension: a comparative analysis
Univariate survival modeling for candidate FPHR3p-modifying variables. Candidate FPHR3p-score modifying variables were stratified and weighted, using the following cut-offs: age ≤ 40 y, 41–65 y, > 65 y; glomerular filtration rate (GFR, calculated by the MDRD-IDMS formula) ≤ 60 or > 60-mL/min/1.73 m2, right atrium area (RAA) < 18, 18–26, > 26 cm2, diffusion capacity for carbon monoxide (DLCO) < 80 or ≥ 80%. The prognostic value of each parameter for overall mortality risk prediction when assessed at baseline (a) and first follow-up (b) were evaluated by univariate Cox proportional hazard modeling. Points depict hazard ratios (HR), whiskers represent 95% confidence intervals (CI). Points are labeled with HR, 95% CI, and p values. Statistical significance (HR ≠ 1) was assessed with the Wald Z test. Nbaseline = 130, N1st follow-up = 112, Ndeceased = 43