Table 2.
Comparison of preoperative and postoperative eGFRs between the two groups.
| RNU group (n = 40) | SU group (n = 40) | p value | |
|---|---|---|---|
| Preoperative eGFR | 65.5 ± 17.7 | 62.2 ± 21.4 | |
| Postoperative 1-month eGFR | 49.6 ± 11.4 | 65.3 ± 21.0 | |
| Change in eGFRa | − 16.0 ± 16.1 | 3.8 ± 10.1 | < 0.001 |
| eGFR preservation ratea (%) | 78.8 ± 18.9 | 108.5 ± 20.0 | < 0.001 |
| Postoperative 12-month | 49.7 ± 12.9 | 65.4 ± 22.1b | |
| Change in eGFRa | − 15.8 ± 17.8 | 3.4 ± 16.7 | < 0.001 |
| eGFR preservation ratea (%) | 79.6 ± 23.7 | 110 ± 30.7 | < 0.001 |
The Shapiro–Wilk normality test was used to investigate the normal distribution of continuous variables. Continuous and normally distributed variables are presented as mean ± standard deviations.
eGFR is expressed in mL/min/1.73 m2.
eGFR estimated glomerular filtration rate, SU segmental ureterectomy, RNU radical nephroureterectomy.
aVersus preoperative eGFR.
bPostoperative eGFR values at 12 months were available for 34 (85%) patients who underwent SU.