Table 3.

Factors affecting patient’s complications and effect on improved outcome in 220 patients assessed by multivariate analysis.

Variable	Regression coefficient	SEM	Relative risk (95% CI)	P
Complication rate
Stent length (cm)	0.413	0.172	1.511 (1.079–2.117)	0.016
Outcome
Age (years)	−0.149	0.061	0.862 (0.765–0.971)	0.014