Even after adjustment for age, sex, mean arterial blood pressure, sinus rhythm, coronary artery disease, chronic heart failure, diabetes, and serum creatinine and hsCRP levels, mortality remained 2.34 times higher in patients within the highest FGF23 tertile than in the lowest tertile (Table 2), even after adjustment for potential confounders or EuroSCORE II. Here, FGF23 is linked to congestive heart failure.