Table 2.

Adjusted Models for Colorectal Cancer Screening Among Newly Eligible Enrollees, Kaiser Permanente Northern California 2007-2012

Model	Any CRC screening			FIT			Colonoscopy			Sigmioidoscipy
	HR	95% CI		HR	95% CI		HR	95% CI		HR	95% CI
Unadjusted Modelsa
White	1.00			1.00						1.00
Black	0.96	0.94	0.98	0.91	0.88	0.93	1.09	1.00	1.19	1.41	1.32	1.50
Hispanic	0.94	0.92	0.95	0.94	0.93	0.96	0.82	0.76	0.87	0.98	0.93	1.04
Asian	1.19	1.17	1.21	1.20	1.18	1.22	1.05	0.98	1.11	1.22	1.16	1.29
Native American	0.90	0.82	1.00	0.93	0.84	1.03	0.55	0.32	0.92	0.86	0.60	1.24
Multiple races	1.00	0.92	1.09	1.00	0.91	1.09	1.04	0.75	1.43	1.04	0.79	1.38
Partially adjusted modelsb
White	1.00			1.00			1.00			1.00
Black	0.97	0.95	0.99	0.94	0.92	0.97	0.99	0.90	1.08	1.19	1.11	1.28
Hispanic	0.94	0.92	0.95	0.94	0.93	0.96	0.77	0.72	0.83	1.06	1.05	1.11
Asian	1.13	1.11	1.14	1.14	1.12	1.16	0.87	0.81	0.93	1.18	1.18	1.25
Native American	0.91	0.82	1.01	0.93	0.84	1.04	0.58	0.35	0.99	0.92	0.92	1.32
Multiple races	0.97	0.95	0.99	0.99	0.91	1.08	1.09	0.79	1.51	0.96	0.96	1.28
Fully adjusted modelsc
White	1.00			1.00			1.00			1.00
Black	0.98	0.96	1.00	0.95	0.93	0.98	1.03	0.95	1.13	1.21	1.13	1.30
Hispanic	0.95	0.93	0.96	0.94	0.93	0.96	0.81	0.75	0.87	1.06	1.00	1.13
Asian	1.13	1.11	1.15	1.14	1.12	1.16	0.88	0.82	0.94	1.18	1.12	1.25
Native American	0.91	0.82	1.01	0.93	0.84	1.04	0.60	0.35	1.01	0.93	0.64	1.33
Multiple races	1.00	0.92	1.09	1.00	0.91	1.09	1.10	0.80	1.53	0.97	0.73	1.29

Note: Boldface indicates statistical significance (p<0.05)

^aCox Proportional Hazard Models are adjusted for race/ethnicity.

^bCox Proportional Hazard Models are adjusted for year of 50th birthday, gender, BMI category, Charlson Comorbidity, family history, service area.

^cCox Proportional Hazard Models are adjusted for year of 50th birthday, gender, insurance, language preference, BMI category, Charlson Comorbidity, family history, service area, Census-tract poverty

CRC, colorectal cancer; FIT, fecal immunochemical test; HR, hazard ratio