Skip to main content

Table 1 Characteristics of the patients and stones

From: Optical puncture combined with balloon dilation PCNL vs. conventional puncture dilation PCNL for kidney stones without hydronephrosis: a retrospective study

 

Optical puncture group (n = 21)

Control group (n = 37)

P

Sex, n (%)

  

0.710

 Male

12 (57.1)

23 (62.2)

 

 Female

9 (42.9)

14 (37.8)

 

Mean age (years)

46.8 ± 12.4

44.2 ± 14.0

0.483

Maximum stone diameter (mm)

4.0 ± 1.0

3.9 ± 1.3

0.666

Number of stones, n (%)

  

0.900

 Single

6 (28.6)

10 (27.0)

 

 Multiple

15 (71.4)

27 (73.0)

 

Stone position, n (%)

  

0.985

 Left side

8 (38.1)

14 (37.8)

 

 Right side

13 (61.9)

23 (62.2)

 

ASA score, n (%)

  

0.431

 I

12 (57.1)

25 (67.6)

 

 II

9 (42.9)

12 (32.4)

 

Stone composition, n (%)

  

0.822

 Calcium oxalate

3 (14.3)

5 (13.5)

 

 Calcium phosphate

2 (9.5)

6 (16.2)

 

 Magnesium phosphate

3 (14.3)

4 (10.8)

 

 Uric acid

1 (4.8)

1 (2.7)

 

 Mixed

12 (57.1)

21 (56.8)