Fig 4. Early death risk and the association with functional status at the start of hemodialysis, accounting for patient age (n = 7,664).

Risk ratios for early death were adjusted for the difference in distribution of covariates among patients categorized into 12 subgroups using modified Poission regression models with robust variance. The axis of the rate ratio for early death was represented with a logged scale. Error bars denote 95% CIs. Abbreviation: CI, confidence interval.