Table 1 Item of data in Laser group and RNU group

Number of patients

32

107

–

Male/female

21/11

76/31

> 0.01

Right/left

13/19

41/66

> 0.01

Age (years)

69.3 ± 11

62.3 ± 9.4

> 0.01

Length of hospitalization

3.6 ± 1.9

8.6 ± 2.4

< 0.01

Renal pelvis/ureter

4/28

29/78

< 0.05

Low / High grade

27/5

75 /32

< 0.01

Tumor size (mm)

3 ± 7

23 ± 15

< 0.01

Cr level 1 day post-operatively(umol/L)

89 ± 7.5

123 ± 9.4

< 0.01

Recurrence rate

7/32 (21.9%)

8/107 (7.8%)

< 0.01