Table 4.

Stratified analysis for the relationship between colorectal cancer and diabetes by age and race.

	Age stratified						Race stratified
	<65 years old			65 years old and older			White			Non-white
	Adjusted odds ratio	95% CI	P-value	Adjusted Odds Ratio	95% CI	P-value	Adjusted odds ratio	95% CI	P-value	Adjusted odds ratio	95% CI	P-value
Diabetes			p < 0.0001			p = 0.74			p = 0.03			p = 0.04
	4.78***	2.57–8.89		1.06	0.74–1.53		1.54*	1.04–2.28		1.87*	1.01–3.47
Gender			p = 0.19			p = 0.79			p = 0.11			p = 0.32
Female	1.53	0.80–2.91		1.05	0.74–1.47		1.33	0.93–1.91		0.76	0.44–1.32
Age	–	–	–	–	–	–			p < 0.0001			p < 0.0001
b65 years old	–	–	–	–	–	–	Ref			Ref
≥65 years old	–	–	–	–	–	–	8.42***	5.54–12.80		14.07***	6.98–28.37
Race			p < 0.01			p = 0.02	–	–	–	–	–	–
White	Ref			Ref			–	–	–	–	–	–
Non-white	0.36**	0.21–0.63		0.66*	0.46–0.94		–	–	–	–	–	–
Education			p = 0.48			p = 0.88			p = 0.57			p = 0.69
College or above	1.32	0.60–2.87		1.03	0.72–1.46		1.11	0.78–1.57		1.13	0.63–2.00
Marital status			p = 0.14			p = 0.38			p = 0.28			p = 0.03
Not married	0.65	0.36–1.16		1.17	0.82–1.66		0.84	0.61–1.16		1.93*	1.05–3.54

Bold text indicates significant odds ratios for the relationship between CRC and diabetes in stratified analyses.

^*Level of significance p < 0.05,

^**Level of significance p < 0.01,

^***Level of significance p < 0.001.