Health Care Systems for Tracking Colorectal Cancer Screening Tests

Table 4.15. Screening Rate Multivarible Logistic Regression, Including Study Arm (Intervention and Control Practices): Full Model

Characteristics Stool Testa Colonoscopyb Any Screening Testc
OR 95% CI p OR 95% CI p OR 95% CI p
 
Patient Characteristics
Gender
Male
Female 1.07 0.89 1.28 0.470 1.14 0.94 1.40 0.191 1.12 0.95 1.32 0.162
Age
50-54
55-64 1.41 0.92 2.17 0.115 0.89 0.73 1.10 0.284 1.09 0.85 1.39 0.499
65-69 2.00 1.43 2.79 0.000 0.85 0.68 1.07 0.166 1.30 1.03 1.65 0.028
70-79 2.16 1.33 3.52 0.002 0.94 0.74 1.19 0.612 1.39 1.07 1.80 0.012
Practice Characteristics
Study arm
Control
Intervention—Card 7.65 2.26 25.84 0.001 2.79 1.86 4.20 0.000 3.42 2.51 4.66 0.000
Intervention—Kit 17.66 4.16 74.97 0.000 1.02 0.68 1.55 0.910 6.96 3.80 12.75 0.000
Specialty
Family Med
General Internal Med 1.33 0.74 2.36 0.340 1.31 1.07 1.60 0.008 1.21 1.01 1.45 0.043
Size
Small
Large 1.35 0.70 2.61 0.377 0.59 0.38 0.91 0.018 0.76 0.54 1.05 0.098
Location
Urban
Rural 1.07 0.47 2.46 0.874 2.85 1.85 4.37 0.000 1.86 1.30 2.65 0.001
Suburban 0.86 0.45 1.63 0.643 3.68 2.50 5.42 0.000 2.12 1.59 2.83 0.000
Data sources usedd
Least complete
Moderately complete 2.03 0.43 9.66 0.375 21.88 8.68 55.12 0.000 6.23 2.22 17.51 0.001
Most complete 1.19 0.36 3.93 0.779 17.19 11.11 26.59 0.000 4.33 2.25 8.33 0.000

a. Hosmer-Lemeshow Χ2 = 8.28, p = 0.4068.
b. Hosmer-Lemeshow Χ2 = 10.9, p = 0.2074.
c. Hosmer-Lemeshow Χ2 = 12.25, p = 0.1404. 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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Page last reviewed October 2014
Internet Citation: Table 4.15. Screening Rate Multivarible Logistic Regression, Including Study Arm (Intervention and Control Practices): Full Model. Content last reviewed October 2014. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/research/findings/final-reports/crcscreeningrpt/crcscreentab4-15.html