Risk Factors for Urosepsis after Minimally Invasive Percutaneous Nephrolithotomy in Patients with Preoperative Urinary Tract Infection

Table 3

Univariate and multivariate analysis results in the study.

	Nonurosepsis group (n = 821)	Urosepsis group (n = 22)	Univariate analysis		Multivariate analysis
			OR (95% CI)		OR (95% CI)
Age, >/≤65 years	214/607	5/17	0.834 (0.304–2.289)	0.725
Sex, M/F	471/350	13/9	1.073 (0.454–2.539)	0.872
BMI, >/≤28 kg/m^2	263/558	6/16	1.257 (0.486–3.249)	0.636
Stone side, L/R	392/429	12/10	0.761 (0.325–1.782)	0.529
Complex/common stone	128/693	5/17	1.592 (0.577–4.393)	0.365
Stone diameter, >/≤3 cm	247/574	8/14	1.328 (0.550–3.206)	0.527
Infectious/other stone	37/784	2/20	0.472 (0.106–2.095)	0.312
Preoperative urine culture positive/negative	82/739	3/19	1.423 (0.412–4.912)	0.479
Hydronephrosis, >/≤4 cm	739/82	18/4	2.003 (0.662–6.060)	0.210
Single/multiple channel	729/92	17/5	2.331 (0.840–6.466)	0.095
Channel size, ≤/>18F	278/543	16/6	5.209 (2.016–13.459)	0.001	11.192 (2.425–51.650)	0.002
Operation time (mins)	47.58 ± 8.25	65.68 ± 6.19	4.951 (1.589–15.312)	0.003	6.762 (1.712–17.844)	0.008
Renal injury	38 (4.6%)	4 (18.2%)	4.579 (1.477–14.193)	0.004	5.531 (1.228–14.469)	0.012
Residual stones	87 (10.6%)	2 (9.1%)	1.185 (0.272–5.157)	0.821

M: male; F: female; L: left; R: right; BMI: body mass index; OR: odds ratio; CI: confidence interval.