Table 3.

Cox regression analyses among M₀‐pancreatic cancer patients diagnosed between 2008 and 2013 in the Netherlands and surgically treated by pancreatoduodenectomy

Variable	Hazard ratio	95% CI
Sex
Male	1
Female	0.93	0.82–1.07
Age
<60 years	1
60–75 years	1.06	0.90–1.26
≥75 years	1.16	0.92–1.47
TNM stage
I	1
II/III	1.97*	1.58–2.47
Year of diagnosis
2008	1
2009	0.70*	0.54–0.91
2010	0.90	0.69–1.16
2011	0.87	0.67–1.12
2012	0.93	0.72–1.18
2013	1.10	0.85–1.43
Adjuvant chemotherapy
No	1
Yes (started ≤6 weeks postoperative)	0.68*	0.56–0.82
Yes (started >6 weeks postoperative)	0.79*	0.67–0.95
Yes (date of start missing)	0.71*	0.54–0.93