Effect of ultrasound-guided central venous catheter insertion on the incidence of catheter-related bloodstream infections and mechanical complications

Table 2 Multivariate analysis for the contributing factors of CRBSI

Clinical situations	Contributing factors	Odds ratio	95% CI	P-value
Patients’ characteristics	Age	3.520	0.003~0.032	0.0091*
	Sex	1.380	−0.078~0.407	0.2270
	Absolute neutrophil upon insertion	−0.275	−0.001~0.001	0.4557
Catheter conditions	Resident performance	0.807	−0.742~0.328	0.2257
	Insertion direction (right or left)	1.064	−0.282~0.329	0.6399
	Insertion site (internal jugular, subclavian, or femoral)	0.987	−0.424~0.415	0.6888
	Catheter indwelling duration	0.013	−0.023~0.002	0.0868
	Ultrasound-guided	0.833	−0.635~0.274	0.7201
	Number of lumens	0.787	−0.021~0.001	0.9475
	Size of catheter	1.365	−0.085~0.398	0.4877

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