Table 2.

Comparison of the curative effect of the two groups of patients

	RIRS	UMP	P
No. patients	33	30
Mean operation time (min)	95.61 ± 21.9 (35–145)	55.0 ± 16.1 (30–95)	<0.001
Mean Hb drop (g/L)	7.42 ± 4.7 (1–22)	15.70 ± 9.8 (0–41)	<0.001
Mean Cr elevation (mg/dl)	7.88 ± 9.1 (0–49)	11.40 ± 13.5 (0–63)	0.235
Hospital stay (d)	4.76 ± 1.1 (3–8)	5.83 ± 0.8 (4–8)	<0.001
Postoperative hospital stay (d)	2.97 ± 0.9 (2–6)	4.07 ± 0.9 (2–6)	<0.001
Early SFR, n (%)	18 (54.5%)	24 (80.0%)	<0.050
1 month SFR, n (%)	28 (84.8%)	28 (93.3%)	0.504
3 month SFR, n (%)	30 (90.9%)	29 (96.7%)	0.675
Post-op complications, n (%)			0.228
Fever (Clavien I)	4 (12.1%)	3 (10.0%)
Hematuria (Clavien I)	0	2 (6.7%)
Urosepsis (ClavienII)	1 (3.0%)	0