Figure 4
![Figure 4](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1471-2288-13-51/MediaObjects/12874_2012_Article_915_Fig4_HTML.jpg)
Unadjusted Kaplan-Meier survival curve for all dialysis patients using CORR or ISQ data. Note: Time starts at 90 day after dialysis initiation and the Kaplan-Meier plot was truncated when the number of patients at risk reached 10% of baseline.