Table 5.

Multivariable analysis of predictive factors of residual fragments ≥ 4 mm

	OR (95% CI)	p-value
Holmium laser (Reference Thulium fiber laser)	4.84 (0.34–21.08)	0.47
Age group (Reference group 1)
Group 2	1.34 (0.41–4.21)	0.53
Group 3	0.79 (0.17–2.21)	0.72
Female gender (reference male gender)	1.87 (0.63–6.88)	0.27
Total operation time	1.11 (0.99–1.19)	0.30
Multiple stones (reference single)	3.21 (0.59–5.08)	0.21
Maximum stone diameter	1.23 (1.04–1.31)	0.01
Pre-stented (Reference non pre-stented)	0.97(0.21–4.43)	0.88
Stone clearance modality (Reference combination)
Dusting only	0.46 (0.06–4.23)	0.65
Fragmentation only	0.26 (0.13–1.65)	0.77

Bold character significant p-value

HU Thulium fiber laser, UAS ureteral access sheath, OR odds ratio, CI confidence interval