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Fig. 1 | BMC Nephrology

Fig. 1

From: Urinary phosphorus excretion per creatinine clearance as a prognostic marker for progression of chronic kidney disease: a retrospective cohort study

Fig. 1

Proportional hazards with the applied predictors in the Cox model were assessed by plotting a negative logarithm of the Kaplan–Meier Survivor estimate. The hazard ratio in each patient was calculated, and then patients were divided into two groups according to the median of the hazard ratio. a Proportionality of hazards in Model 2 divided into high and low hazard. b Proportionality of hazards in Model 3, as in (b)

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BMC Nephrology

ISSN: 1471-2369

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