Health Care Systems for Tracking Colorectal Cancer Screening Tests

Table 4.11. CRC Screening Rates by Practice

Practice Stool Test Screening Rate Colonoscopy Screening Rate Any Test Screening Rateb
Unadjusted Adjusted Unadjusted Adjusted Unadjusted Adjusted
Control Practices
CHA 0.00 0.00 4.14 5.01 4.28 5.17
CHB 0.00 0.00 4.57 5.53 4.57 5.53
CUA 1.51 1.82 1.08 1.30 2.58 3.12
Mean 0.50 0.61 3.26 3.95 3.81 4.61
Std dev 0.71 0.86 1.55 1.88 0.88 1.06
CV 1.42 1.41 0.48 0.48 0.23 0.23
Intervention Practices
IAAc,d    
Card 2.07        
Kit 6.86        
IHA 4.16 6.47 10.39
IHDc 6.03
IHE 3.44 8.52 11.89
IHF 4.68 6.34 11.02
IHH 7.53 5.77 12.82
IHI 3.83 10.69 14.52
ISAc,d    
Card 5.36        
Kit 12.90        
IUA 3.40 1.70 5.10
IUB 5.03 4.70 9.40
Mean     6.31 10.73
Std dev     2.62   2.77  
CV     0.42   0.26  
Card mean 4.55          
Std dev 1.46          
CV 0.32          
Kit mean 9.88          
Comparison of Meanse
p value     0.132 0.242 0.005 0.010
Card 0.001 0.002        
Kit 0.028 0.030        

a We excluded practices with fewer than 60 study participants from this comparison of practice screening rates.
b Includes stool test, colonoscopy, flexible sigmoidoscopy, or barium enema x ray. Persons with screens by multiple modalities are counted only once.
c. Incomplete colonoscopy screening data were available for these practices, so we do not report their colonoscopy screening rates or include them in calculating an intervention group mean for colonoscopy or any test.
d We randomized patients in these practices to either the card or kit intervention arm. The card intervention stool test rates for these practices are averaged along with the stool test rates of the other intervention practices to produce the card intervention stool test mean. The kit intervention stool test rates for these practices are separately averaged by themselves to produce the kit intervention stool test mean.
e Reported p values are for F ratios associated with a comparison of unadjusted intervention group means with both unadjusted and SEA adjusted control group means, respectively, by screening modality and, for stool test rates, stool test intervention arm.

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Page last reviewed October 2014
Internet Citation: Table 4.11. CRC Screening Rates by Practice. Content last reviewed October 2014. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/research/findings/final-reports/crcscreeningrpt/crcscreentab4-11.html