Table 4.14. Screening Rate Multivariable Logistic Regression, Intervention Practices Only: Reduced Model

Health Care Systems for Tracking Colorectal Cancer Screening Tests

Characteristics	Stool Test^a				Colonoscopy^b				Any Screening Test^c
Characteristics	OR	95% CI		p	OR	95% CI		p	OR	95% CI		p

Patient Characteristics
*Gender*
Male					—	—	—	—
Female					1.20	1.01	1.44	0.043
*Age*
50-54	—	—	—	—					—	—	—	—
55-64	1.38	0.88	2.17	0.159					1.09	0.80	1.47	0.596
65-69	1.98	1.36	2.87	0.000					1.45	1.09	1.95	0.012
70-79	2.22	1.25	3.96	0.007					1.60	1.15	2.22	0.005
Insurance
Commercial and other	—	—	—	—	—	—	—	—	—	—	—	—
Medicare	0.96	0.80	1.15	0.673	0.86	0.67	1.09	0.213	0.86	0.76	0.97	0.016
Self/Medicaid	0.71	0.52	0.96	0.028	0.63	0.29	1.39	0.255	0.64	0.40	1.01	0.055
Practice Characteristics
*Specialty*
Family medicine					—	—	—	—	—	—	—	—
General internal medicine					1.28	1.09	1.49	0.003	1.16	0.98	1.36	0.080
*Size*
Small	—	—	—	—	—	—	—	—	—	—	—	—
Large	0.69	0.58	0.82	0.000	0.50	0.24	1.06	0.070	0.58	0.43	0.78	0.000
*Location*
Urban	—	—	—	—	—	—	—	—	—	—	—	—
Rural	1.52	0.91	2.55	0.110	2.65	1.61	4.35	0.000	2.01	1.62	2.49	0.000
Suburban	1.18	0.80	1.73	0.410	3.74	2.29	6.13	0.000	2.23	1.79	2.78	0.000
Data sources used^d
Least complete	—	—	—	—	—	—	—	—	—	—	—	—
Moderately complete	1.91	0.58	6.29	0.287	18.56	6.11	56.31	0.000	4.88	1.71	13.92	0.003
Most complete	1.94	0.96	3.93	0.066	19.32	8.84	42.23	0.000	4.62	3.00	7.12	0.000

^a. Hosmer-Lemeshow Χ² = 24.69, p = 0.002.
^b. Hosmer-Lemeshow Χ² = 14.33, p = 0.074.
^c Hosmer-Lemeshow Χ² = 13.38, p = 0.099. Includes stool test, colonoscopy, flexible sigmoidoscopy, or barium enema x ray. Persons with screens by multiple modalities are counted only once.
^d The data sources used affects the amount of screening information available for patients of a given practice. It is not an indicator of predicting screening. Instead, this variable is used to control for the fact that some practices had more complete data than others.

Note: Confidence intervals and p values have been adjusted using cluster variance estimators.

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Current as of December 2010

Internet Citation: Table 4.14. Screening Rate Multivariable Logistic Regression, Intervention Practices Only: Reduced Model: Health Care Systems for Tracking Colorectal Cancer Screening Tests. December 2010. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/research/findings/final-reports/crcscreeningrpt/crcscreentab4-14.html