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Table 4 Prognosis of residual stones within one month according to stone locations

From: Cost-effectiveness of anti-retropulsive devices varies according to the locations of proximal ureteral stones: a retrospective cohort study

 

Type of procedure

p value

URS

URS + ARD

Stones from UPJ (mm)

   

 ≤ 30

   

 Residual stonea, No

5

4

 

 Diameter (mm)

8.8 ± 2.9

6.0 ± 2.2

0.158

 Spontaneous pass, No

0

1

0.444

31–90

   

 Residual stonea, No

11

7

 

 Diameter (mm)

8.0 ± 3.1

4.9 ± 2.2

0.035

 Spontaneous pass, No

0

4

0.011

 > 90

   

 Residual stonesa, No

0

0

–

  1. Bold fonts to highlight the statisitical significance
  2. aEvaluated at the time of one day after operation
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BMC Urology

ISSN: 1471-2490

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