Table 2.

Risk factors for subsequent colorectal cancer mortality, without and with adjustment for vitamin D.

		Model 1 (without Vitamin D)			Model 2 (with Vitamin D)
Independent Variables and Effects		Hazards Ratio	Lower 95% Limit	Upper 95% Limit	Hazards Ratio	Lower 95% Limit	Upper 95% Limit
Serum vitamin D (ng/mL)	Serum vitamin D < 20(ng/mL)				2.11	1.11	4.00
	Serum vitamin D ≥20(ng/mL)				1.00	1.00	1.00
Age	Years	1.12	1.09	1.15	1.12	1.09	1.15
Sex	Female	1.62	0.78	3.38	1.87	0.89	3.92
	Male	1.00	1.00	1.00	1.00	1.00	1.00
Race/Ethnicity	Non-Hispanic White	1.00	1.00	1.00	1.00	1.00	1.00
	Non-Hispanic Black	2.03	1.04	3.95	1.60	0.87	2.93
	Hispanic	1.40	0.62	3.18	1.30	0.58	2.93
	Other	1.10	0.42	2.93	1.06	0.39	2.88
Education
	< high school	1.33	0.51	3.47	1.32	0.51	3.43
	High school	1.16	0.48	2.82	1.18	0.48	2.86
	> high school	1.00	1.00	1.00	1.00	1.00	1.00
Health insurance	Any	1.00	1.00	1.00	1.00	1.00	1.00
	None	2.45	1.12	5.36	2.42	1.07	5.45
Body mass index (Kg/m2)	<20	0.53	0.16	1.75	0.54	0.16	1.78
	20–<25	1.00	1.00	1.00	1.00	1.00	1.00
	25–<30	0.68	0.37	1.24	0.64	0.35	1.20
	≥30	1.52	0.69	3.35	1.41	0.62	3.24
History of Colorectal Cancer	Yes	7.22	2.12	24.59	7.19	2.15	24.02
	No	1.00	1.00	1.00	1.00	1.00	1.00

Notes: models also adjusted for month and region.