Factor (category) | Univariate analysis | Multivariate analysis | ||||
---|---|---|---|---|---|---|
OR | p Value | 95% CI | OR | p Value | 95% CI | |
Volume | 0.467 | 0.006 | 0.306–0.713 | NS | ||
Invasivenss | 0.018 | <0.001 | 0.002–0.134 | 0.029 | 0.001 | 0.004–0.224 |
Reoperation | 0.407 | 0.011 | 0.204–0.81 | NS | ||
Learning curve | 0.401 | 0.009 | 0.203–0.792 | NS |