CRP and retinal disorder: In the univariate analysis, age at admission (HR = 0.86, 95% CI 0.75–0.98, p = 0.027), retinopathy (HR = 0.43, 95% CI 0.21–0.89, p = 0.024), revascularization (HR = 0.47, 95% CI 0.24–0.89, p = 0.02), renal artery involvement (HR = 0.48, 95% CI 0.25–0.93, p = 0.029), and elevated CRP (HR = 1.96, 95% CI 1.02–3.79, p = 0.045) were significant prognostic factors for rehospitalization.