Table 6.

Multivariable analysis of access site stenosis or occlusion

Covariates	OR	95% CI	P Value
Antegrade Access	1.47	0.94–2.31	0.092
Prior Infrainguinal Bypass: Ref None
Ipsilateral	1.48	0.79–2.76	0.222
Contralateral	0.52	0.16–1.63	0.261
Bilateral	3.80	1.95–7.41	<0.001
Female Sex	1.70	1.22–2.37	0.002
Protamine	1.52	1.03–2.23	0.033
Prior Inflow Stent or Angioplasty: Ref None
Ipsilateral	1.30	0.87–1.94	0.203
Contralateral	0.50	0.27–0.91	0.024
Bilateral	0.75	0.43–1.32	0.320
Obese	0.70	0.51–0.97	0.034
Ultrasound Guidance	0.68	0.49–0.95	0.022
Elective	0.48	0.34–0.68	<0.001

CI = confidence interval; OR = odds ratio.