CRP and chronic kidney disease: After multistep backward elimination, out of the 10 variables included, only chronic kidney disease (Wald: 7.090, OR: 8.866, 95%CI: 1.779–44.187, p = 0.008), C-reactive protein (Wald: 4.347, OR: 1.194, 95%CI: 1.011–1.410, p = 0.037) and ED-A+ Fn (Wald: 6.757, OR: 1.045, 95%CI: 1.011–1.080, p = 0.009) could be evidenced to be independent predictors of PH.