Analysis of risk factors for central venous port failure in cancer patients

Table 4 Univariate and multivariate analyses of risk factors for TIVAD failure

	Univariate hazard ratio	95% CI	P value	Multivariate hazard ratio	95% CI	P value
Age (yr)	1.009	1.002-1.015	0.006	1.009	1.003-1.016	0.003
Sex
Male	1.63	1.373-1.936	< 0.001	1.566	1.318-1.861	< 0.001
Female	1
Origin of patients
Inpatient	1
Outpatient	0.926	0.779-1.100	0.385
Type of catheter
Groshong	1
Open-ended	1.719	1.461-2.023	< 0.001	1.689	1.435-1.989	< 0.001
Insertion site
RCV	0.891	0.754-1.053	0.179
Others1	1
Type of malignancy
Solid	1
Hematogenous	1.336	0.966-1.849	0.080	1.499	1.079-2.083	0.016

¹Others include left cephalic vein, right subclavian vein, left subclavian vein, femoral vein and jugular vein. RCV: Right cephalic vein.