Statistical methods
intradialytic hypotension
INTRADIALYTIC HYPOTENSION
Data are presented as mean ± SEM or median and interquartile range. We also estimated the area under the curve for the change from baseline over time in blood pressure and heart rate, calculated by summing the numerical values of successive linear segments for every 15 min intervals. We used McNemar’s test to compare the occurrence of intradialytic hypotension between the treatment groups. The effect of treatment on blood pressure and heart rate were analyzed by comparing the areas under the curves with the Wilcoxon paired test.