CRP and Hypernatremia: Multivariable analysis identified 3 independent risk factors for higher in-hospital mortality; older age (adjusted hazard ratio = 1.04; 95% CI, 1.01-1.07, P = .007), higher CRP concentrations (adjusted hazard ratio = 1.10 per 20 mg/L; 95% CI, 1.04-1.17, P < .001), and hypernatremia at any time point during the first 5 days of hospitalization (adjusted hazard ratio = 2.74; 95% CI, 1.16-6.40), P = .02) (Table 2).