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Table 3 Stone Location and Operation Time(minutes)

From: Supra-costal tubeless percutaneous nephrolithotomy is not associated with increased complication rate: a prospective study of safety and efficacy of supra-costal versus sub-costal access

Level

Number

Mean

Std Dev

Std Err Mean

Lower 95%

Upper 95%

Renal+upper ureter

9

90

17.5

5.83

76.55

103.45

Renal

41

98.29

20.26

3.16

91.9

104.69

Stghorn

25

121.6

27.90

5.58

110.08

133.12

Upper ureter

11

96.36

21.57

6.50

81.87

110.86

  1. 1. Chi-square test, p < 0.0001
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BMC Urology

ISSN: 1471-2490

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