Table 3.

Associations between risk factors and mortality among haemodialysis patients by multiple logistic regression analysis.

Factors	Univariate		Multivariate
	OR (95% CI)	P	Adjusted OR (95% CI)	P
Omicron variant infection
Yes vs. no	2.70 (1.29–5.65)	0.0084	2.64 (1.25–5.58)	0.0109
Age
≥65 years vs. <65 years	2.33 (1.08–5.03)	0.0311	2.34 (1.08–5.07)	0.0312
Sex
Female vs. male	1.06 (0.48–2.34)	0.8854	0.97 (0.43–2.19)	0.9415
Diabetes
Yes vs. no	1.42 (0.65–2.99)	0.3791	1.50 (0.68–3.31)	0.3151
Dialysis duration
≥48 months vs. <48 months	1.12 (1.04–1.21)	0.0027	1.15 (1.06–1.25)	0.0008
Vascular access approach
CVC vs. internal fistula	2.89 (1.25–6.68)	0.0131	2.24 (0.93–5.40)	0.0722
*Nucleic acid quantification
CT values (ORF)
≥21 vs. <21	2.54 (0.39–9.62)	0.3259	2.65 (0.40–16.54)	0.3259
CT values (N gene)
≥21 vs. <21	1.90 (0.29–12.45)	0.5033	2.06 (0.31–13.69)	0.4545
*Days to viral clearance
≥11 days vs. <11 days	6.01 (2.33–15.50)	0.0002	5.78 (2.15–15.54)	0.0005

CVC: central venous catheter.

CT: cycle threshold.

OR: odds ratio.

*The analysis data included only COVID-19 patients.