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Table 1 Demographic and stone characteristic

From: One-stage efficacy of single tract minimally invasive ECIRS in the improved prone frog split-leg position for staghorn stones

Characteristic

stmECIRS (n = 45)

stmPNL (n = 38)

P value

Age (years)

54.64 ± 11.58

55.13 ± 11.22

0.847

Gender

0.426

 Male

31

23

 

 Female

14

15

 

BMI (kg/m2)

23.84 ± 3.49

22.44 ± 2.96

0.054

Hb (g/L)

137.96 ± 13.61

131.89 ± 21.92

0.144

Scr(umol/L)

74.4 (62.4, 82.9)b

80.1 (68.1, 94.1)b

0.204a

Stone side

0.062

 Left

27

15

 

 Right

18

23

 

Stone size (mm)

48.7 (41.7, 67.0)b

43.1 (35.5, 67.3)b

0.128a

Mean CT density (HU)

1299.53 ± 282.75

1275.92 ± 345.16

0.733

No. of staghorn calculi

0.368

 Complete

13

32

 

 Partial

10

28

 
  1. Data are reported as numbers and percentages or as mean ± SD, as appropriate
  2. StmPNL Group: Single tract minimally invasive percutaneous nephroscopy in prone position was performed for the patients in the prone position
  3. StmECIRS Group: Single tract minimally invasive endoscopic combined intrarenal surgery was performed in the improved prone frog split-leg position
  4. BMI: Body mass index; CT: computed tomography; HU: hounsfifield units
  5. aMann–Whitney U test was used when normal distribution was not obeyed
  6. bNon-normally distributed continuous variables were represented by the median (quartile)