Table 3.

Multivariate model output from backward stepwise selection model including only variables that are significant at (p < 0.01) in the multivariate model

Variable	OR (95% CI)	p-value
VO2 max (continuous)	0.82 (0.77–0.86)	< 0.001
AT (continuous)	0.66 (0.61–0.71)	< 0.001
AT VE/VCO2 (continuous)	1.33 (1.26–1.40)	< 0.001
COPD
No	1	0.001
Yes	1.99 (1.33–2.98)
Chronic renal impairment
No	1	< 0.001
Yes	7.50 (4.29–13.10)
Age group
> 70 years	1	0.001
51–70 years	0.35 (0.18–0.69)	0.003
< 50 years	0.25 (0.12–0.51)	< 0.001
Diabetic status
Negative	1	0.002
Insulin	2.54 (1.52–4.23)	< 0.001
Non-insulin dependent	1.02 (0.98–1.06)	0.831
BMI categories
< 18.5	6.98 (2.91–16.74)	< 0.001
18.5–24.99	1	< 0.001
≥ 25.0	1.72 (0.90–3.30)	0.102
Surgery type
Robotic/laparoscopic	1	< 0.001
Open	10.80 (5.77–20.19)
Cancer stage
Primary	1	0.006
Local nodal metastases	1.61 (0.84–3.09)	0.153
Distant metastases	11.22 (2.31–54.66)	0.003
WHO category
0	1	< 0.001
≥ 1	3.94 (2.58–6.03)
Prior TIA/stroke
No	1	0.002
Yes	3.07 (1.50–6.31)