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Table 5 The SWL outcomes (case %) according to stent caliber and comparisons among these groups

From: Has the pelvic renal stone position inside the upper loop of JJ stent any influence on the extracorporeal shock wave lithotripsy results?

SWL outcome	Case %				p values
SWL outcome	8 Fr	7 Fr	6 Fr	All	8 versus 7 Fr	8 versus 6 Fr	8 versus 6 and 7 Fr	6 versus 7 Fr.	6 versus 7 and 8 Fr
SF after 1st SWL	2.9	8.7	9.5	8.0	0.726	0.384	0.383	0.786	0.515
SF after 2nd SWL	0	13.1	23.8	17.3	0.032	0.004	0.006	0.394	0.006
SF after 3rd SWL	2.9	4.3	23.8	16.7	0.652	0.014	0.031	0.036	0.002
Overall stone free	5.9	26.1	57.1	42.0	0.033	0.001	0.001	0.014	0.001
Residual fragments	23.5	47.8	29.6	30.9	0.105	0.648	0.102	0.148	0.747
Stone not fragmented	70.6	26.1	13.3	27.1	0.002	0.001	0.001	0.227	0.001

Values in italics for p < 0.05
SF stone-free

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