Sample and statistical power calculation:
We conducted a census for the collection of participants in the
established study period. The total sample of our study was 343
participants. For the statistical power calculation, we used the study
by Tatar et al., who evaluated the association of high NLR and mortality
in elderly patients with CKD stages 3-5. In this study, the survival
reported in the Kaplan-Meier Curves at sixty months in the group with
increased NLR was 50.5%, while in the group with normal NLR, it was
85.6%. We carried out the calculations using a 95% confidence interval
(CI) and obtained a statistical power of 99%