Table 3.
Variable | Bivariable analysis | Multivariable analysis | ||||||
---|---|---|---|---|---|---|---|---|
| ||||||||
OR | 95% CI | p value | OR | 95% CI | p value | |||
Location | ||||||||
Edmonton | 1.00 | 1.00 | ||||||
Calgary | 0.11 | 0.05 | 0.25 | <0.001 | 0.11 | 0.05 | 0.24 | <0.001 |
Year of diagnosis (per year increase) | ||||||||
1.22 | 1.04 | 1.45 | 0.018 | 1.32 | 1.03 | 1.70 | 0.031 | |
Sex | ||||||||
Male | 1.00 | |||||||
Female | 0.83 | 0.55 | 1.23 | 0.349 | ||||
Annual surgeon case load | ||||||||
≤1.5 | 1.00 | |||||||
1.6–2.5 | 0.60 | 0.19 | 1.91 | 0.388 | ||||
2.6–6.0 | 1.74 | 0.64 | 4.72 | 0.277 | ||||
>6.0 | 3.26 | 0.51 | 20.9 | 0.212 | ||||
Age | ||||||||
<80 | 1.00 | 1.00 | ||||||
≥80 | 0.21 | 0.08 | 0.57 | 0.002 | 0.21 | 0.06 | 0.71 | 0.012 |
NACT: neoadjuvant chemotherapy; OR: odds ratio; CI: confidence interval.