Fig. 3

IDCR changes in 33 hospitalized patients after 1 to 3 successive hemodialysis treatments (Group 2 of Study 1). IDCR is calculated at baseline before the first hemodialysis session (Day 0), on Day 2 before the second hemodialysis session, on Day 4 before the third hemodialysis session, and on Day 6 following the third hemodialysis session. The thin lines identify individual patients and the number of observations (obs total of 79) for the day are shown below. The average values of IDCR are shown by the bold squares with the error bars corresponding to the standard deviations. Based on the GEE model, IDCR increases by 0.013 (95% CI 0.008, 0.017; p < 0.001) between each successive hemodialysis session due to fluid removal by ultrafiltration