Table 2.

Baseline model for TTR and OS

Factor	Level	TTR				OS
		HR	CI-	CI+	p	HR	CI−	CI+	p
Age	Continuous					1.0	1.0	1.0	0.025
Sex	Male					(Ref)
	Female					0.9	0.7	1.3	0.739
ASA	1					(Ref)			0.004
	2					1.3	0.6	2.5	0.493
	3–4					2.3	1.2	4.7	0.015
Surgery	Elective	(Ref)				(Ref)
	Emergency	2.5	1.5	4.1	< 0.001	1.5	1.0	2.3	0.061
pT	pT1–2	(Ref)			0.578	(Ref)			0.001
	pT3	1.7	0.6	5.0	0.368	0.9	0.5	1.7	0.853
	pT4	1.9	0.6	6.1	0.296	2.1	1.1	4.1	0.03
pN	pN0	(Ref)			< 0.001	(Ref)			< 0.001
	pN1	2.4	1.2	4.6	0.011	2.2	1.4	3.4	0.001
	pN2	5.8	2.8	12.1	< 0.001	4.2	2.4	7.5	< 0.001
Sampled nodes	< 12	(Ref)				(Ref)
	≥12	2.0	0.6	6.8	0.241	1.6	0.8	3.2	0.158
Malignancy grade	Low	(Ref)				(Ref)
	High	1.6	0.9	2.8	0.078	0.9	0.6	1.5	0.787
Vascular invasion	No	(Ref)				(Ref)
	Yes	1.4	0.8	2.5	0.199	0.9	0.6	1.5	0.721
Perineural invasion	No	(Ref)				(Ref)
	Yes	1.7	1.0	3.0	0.056	1.6	1.0	2.7	0.072
Adjuvant treatment	No	(Ref)				(Ref)
	Yes	0.6	0.4	1.1	0.105	0.4	0.2	0.7	0.001

Multivariable model for TTR and OS used in adjusted analyses of predictor variables