Mortality predictability of the difference of the percentiles of the changes in dietary protein intake, represented by nPNA (nPCR), and serum P concentration.

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Mortality predictability of the difference of the percentiles of the changes in dietary protein intake, represented by nPNA (nPCR), and serum P concentration in 30,075 MHD patients. Mortality predictability of the difference of the percentiles of the changes in dietary protein intake, represented by nPNA (nPCR), and serum P concentration in 30,075 MHD patients. The difference between nPNA and serum P concentration in each patient is a number between −0.98 and 0.98. The y axis shows the logarithm of the risk ratio of all-cause mortality during 3 years on the basis of a multivariable Cox regression spline model, adjusted for case mix and measures of nutritional status and inflammation. Dashed lines are 95% point-wise confidence levels. Each patient received a percentile score between 0.01 and 0.99 according to the percentile rank of the change in nPNA or serum P. Adapted from reference (33), with permission. Kamyar Kalantar-Zadeh et al. CJASN 2010;5:519-530 ©2010 by American Society of Nephrology