Table 2. Stone-free rates according to S-ReSC scoring system.

S-ReSC score	Stone-free rate	S-ReSC group	Stone-free rate	P value	OR	95% CI
1	86.0% (92/107)	Low (1–2)	83.9% (151/180)	Reference
2	80.8% (59/73)
3	50.7% (36/71)	Intermediate	47.6% (50/105)	<0.001	0.17	0.10–0.30
4	41.2% (14/34)	(3–4)
5	25.0% (4/16)	High (5–9)	21.4% (9/42)	<0.001	0.02	0.02–0.12
6	30.8% (4/13)
7	0% (0/2)
8	20% (1/5)
9	0% (0/6)
	P<0.001		P<0.001

OR, Odds ratio; CI, confidence interval.