In multivariable analysis FGF-23 levels remained independent predictors for 30-day ( odds ratio per 10log 1.80 , 95 % confidence interval ( CI ) 1.11 to 2.92 ; P = 0.02 ) and 1-year mortality ( hazard ratio 1.50 , 95 % CI 1.11 to 2.04 , P = 0.009 ) .