Figure 3.

Association between intradialytic hypertension frequency and 30-day mortality. A single episode of intradialytic hypertension was defined as a predialysis to postdialysis systolic BP rise >0 mm Hg. Multivariable Cox proportional hazards models were used to estimate the associations between intradialytic hypertension frequency and all-cause mortality (a) and cardiovascular mortality (b). Models were adjusted for the baseline covariates listed in Table 1. All y-axes scales are natural log transformed. Abbreviations: BP, blood pressure; CI, confidence interval; HR, hazard ratio; ref, referent.