Table 3.

Survival Rates of the under-50 and above-50 Groups and Results of Survival Analysis, 2007-2017

Variables	Survival Rate, %		Simple Cox Regression		Multiple Cox Regression a
	3 years (95% CI)	5 years (95% CI)	Crude HR (95% CI)	p-value	Adjusted HR (95% CI)	p-value
Age groups
<50 years	60.04 (54.0,66.8)	48.41 (42.0,55.9)	1.00 (ref.)		1.00 (ref.)
≥50 years	59.52 (56.9,62.3)	50.67 (47.8,53.7)	1.03 (0.84,1.25)	0.801	1.10 (0.90,1.36)	0.359

CI, confidence interval; HR; hazards ratio; ^a, Adjusted for gender, ethnicity, smoking status, family history of colorectal cancer, symptoms at presentation, treatment received, diabetes mellitus status, primary cancer site and cancer stage at diagnosis. A total of 1,563 patients with complete documentation for all the variables listed were included in the model.