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Figure 1 Cr Levels Before Coronary Angiography, on Day 4, at Peak Value, and at Hospital Discharge
Changes in serum creatinine (Cr) values in the dialysis and control groups were assessed using repeated-measures analysis of covariance. Multiple comparisons with the Bonferroni t test were used for the comparisons between and within groups. For the interaction between time and treatment in terms of the Cr level, F statistic = 22.9 (p < 0.001). Changes from baseline in the Cr level were significant at the peak value in the dialysis group (***p = 0.008) and on day 4, at the peak value, and at discharge in the control group (*p < 0.001); the difference between the 2 groups was significant on day 4 and at peak value (**p = 0.010 on day 4; p = 0.005 at peak value).
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