Figure 4
From: Current dialyzer classification in Japan and mortality risk in patients undergoing hemodialysis
Hazard ratios for all-cause mortality in the four dialyzer groups compared to the reference group after propensity score matching using a Cox proportional hazards regression model. (a) Ia group vs. IIa group; (b) Ia group vs. IIb group; (c) Ia group vs. S group; and (d) IIa group vs. the IIb group. *P < 0.05, **p < 0.0001 vs. Ia group. Error bars correspond to 95% confidence intervals.
