Efficacy of Adjuvant Tamsulosin for Improving the Stone-Free Rate after Extracorporeal Shock Wave Lithotripsy in Renal Stones: A Randomized Controlled Trial

Table 1

Clinical characteristics of the study population by group.

	Control group (n = 29)	Tamsulosin group (n = 28)	Intergroup comparison
Age (years)	47.14 (15.07)	40.79 (9.09)	= 0.080^a
Sex			= 0.230^b
Female, n (%)	13 (44.83)	17 (60.71)
Male, n (%)	16 (55.17)	11 (39.29)
Laterality			= 0.881^b
Right renal stone, n (%)	13 (44.83)	12 (42.86)
Left renal stone, n (%)	16 (55.17)	16 (57.14)
Location			= 0.836^b
Renal pelvis, n (%)	11 (37.93)	12 (42.86)
Upper calix, n (%)	7 (24.14)	5 (17.86)
Middle calix, n (%)	11 (37.93)	11 (39.29)
Stone size (mm) in diameter	11.79 (4.87)	11.04 (4.18)	= 0.591^a
Duration of treatment (minutes)	54.28 (7.86)	54.54 (7.56)	= 0.941^a
Number of shocks (number)	3857.48 (389.72)	3863.36 (370.56)	= 0.864^a
Total energy (joules)	153.21 (29.98)	150.64 (32.74)	= 0.518^a

Unless otherwise indicated, values are given as mean (standard deviation). ^aMann–Whitney U test. ^bChi-square test.