Table 4.

Multivariable analysis of predictive factors of overall complications

	OR (95% CI)	p-value
Age group (Reference group 1)
Group 2	1.17 (0.41–3.03)	0.77
Group 3	1.25 (0.33–3.64)	0.81
Female gender (reference male gender)	1.42 (0.61–3.87)	0.48
Positive preoperative urine culture (Reference negative)	1.21 (0.51–3.49)	0.67
Total operation time	1.12 (1.01–1.19)	0.005
Multiple stones (reference single)	1.68 (0.52–4.86)	0.41
Maximum stone diameter	0.96 (0.91–1.11)	0.93
Pre-stented (Reference non pre-stented)	0.84 (0.26–2.41)	0.74
Reusable scope (Reference disposable)	6.51 (2.12–18.01)	0.01

Bold character significant p-value

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