| 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.
