Major postoperative complications are associated with impaired long-term survival after gastro-esophageal and pancreatic cancer surgery: a complete national cohort study

Table 2 Age, gender, educational level and type of resection, and association with major postoperative complications

Variable	Categories	Percentage^a	OR (95 % CI)^b	p-value
Age	Above 65 years	12.2	0.91 (0.70–1.20)	0.515
Age	65 years or less	13.2	1.0
Gender	Male	13.7	1.29 (0.98–1.72)	0.071
Gender	Female	10.9	1.0
Educational level	Lower education	13.5	1.41 (1.02–1.95)	0.039
Educational level	Higher education	10.0	1.0
Type of resection	Esophageal	17.2	1.67 (1.18–2.36)	0.004
	Pancreatic	12.6	1.15 (0.85–1.56)	0.358
	Gastric	11.1	1.0

^aPercentage that suffered one or more major postoperative complications
^bOdds ratio, with 95 % confidence interval, for suffering one or more major postoperative complications

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