Table 4.8. Effect Size of SATIS-PHI/CRC Intervention on Screening Rates

Health Care Systems for Tracking Colorectal Cancer Screening Tests

Study Group	N	Stool Test					Colonoscopy					Any Screening Test^a
Study Group	N	% Screened	OR	95% CI		p	% Screened	OR	95% CI		p	% Screened	OR	95% CI		p
All Practices
Control	2,662	0.56	—	—	—	—	3.31	—	—	—	—	3.91	—	—	—	—
Card intervention	7,495	4.16	7.66	1.68	35.04	0.009	4.52	1.39	0.61	3.17	0.439	8.59	2.31	1.39	3.85	0.001
Kit intervention	470	7.66	14.64	3.24	66.04	0.000	0.43	0.13	0.04	0.42	0.001	8.09	2.16	1.40	3.35	0.001
Adjusted Control Group Denominator^b
Control	2,199	0.68	—	—	—	—	4.00	—	—	—	—	4.73	—	—	—	—
Card intervention	7,495	4.16	6.32	1.36	29.31	0.018	4.52	1.14	0.50	2.58	0.760	8.59	1.89	1.14	3.13	0.013
Kit intervention	470	7.66	12.08	2.64	55.25	0.001	0.43	0.10	0.03	0.34	0.000	8.09	1.77	1.15	2.72	0.009
Practices With Patients Randomized to Card or Kit Intervention^c
Card intervention	1,877	2.56	—	—	—	—	0.80	—	—	—	—	3.36	—	—	—	—
Kit intervention	470	7.66	3.16	2.40	4.16	0.000	0.43	0.53	0.20	1.42	0.207	8.09	2.53	2.14	3.00	0.000
Practices With More Complete Electronic Data^d
Control	2,662	0.56	—	—	—	—	3.31	—	—	—	—	3.91	—	—	—	—
Intervention^e	5,104	4.57	8.44	1.84	38.73	0.006	6.27	1.96	0.95	4.03	0.069	10.68	2.94	1.94	4.46	0.000
Adjusted Control Group Denominator^b
Control	2,199	0.68	—	—	—	—	4.00	—	—	—	—	4.73	—	—	—	—
Intervention^e	5,104	4.57	6.96	1.50	32.40	0.013	6.27	1.60	0.78	3.28	0.195	10.68	2.41	1.60	3.62	0.000
Practices With EMR Systems Only^f
Control	2,576	0.54	—	—	—	—	3.18	—	—	—	—	3.77	—	—	—	—
Intervention^e	4,950	4.57	8.75	1.66	46.23	0.011	6.06	1.96	0.90	4.27	0.090	10.46	2.99	1.93	4.61	0.000

^a. Includes stool test, colonoscopy, flexible sigmoidoscopy, or barium enema x ray. Persons with screens by multiple modalities are counted only once.
^b. Control group denominator adjusted for information not obtained by SEA form or by mailings returned as undeliverable.
^c. Includes only patients from the two intervention practices randomized to either receiving the kit directly or having to request it with a reply card.
^d. Includes only those practices with most complete or moderately complete electronic data; excludes practices IAA, IHD, and ISA with least complete data.
^e. Includes only patients receiving card intervention for stool test; patients receiving kit intervention excluded because of being from excluded practices.
^f. Includes only those practices with EMR systems used for electronic record review.

Note: Odds ratio confidence intervals and p values have been adjusted using cluster variance estimators.

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Current as of December 2010

Internet Citation: Table 4.8. Effect Size of SATIS-PHI/CRC Intervention on Screening Rates: 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/crcscreentab4-8.html