Table 3.

Odds Ratio (OR) for Eligible Patients Being Screened, Showing Contribution of Key Variables

	OR	95% Confidence Interval	P
Computer reminders	2.31	1.40 to 3.82	.001
Patient reminders	1.90	1.34 to 2.71	<.001
Both reminders	1.73	1.16 to 2.59	.008
FP prior screen rate	5.23	1.63 to 16.86	.005
Patient number of visits	1.22	1.14 to 1.31	<.001
Patient “regular”	2.09	1.58 to 2.77	<.001
Patient non-European ethnicity	1.29	0.99 to 1.67	.06

Logistic regression adjusted for clustering on FP, n=5,628.

Computer, patient, and both reminders indicate the OR of the patient being screened if they attended an FP in each intervention group, compared with their being in the usual care group. FP prior screen rate indicates an OR of 5.23 for being screened if the patient attended an FP whose screening rate prior to the trial was 100% compared with an FP who screened 0% prior to the trial. Patient number of visits indicates an OR of 1.22 per additional visit during the trial. Patient “regular” indicates an OR of 2.09 for patients who were “regular” patients of the practice compared with those who were “casual” or “temporary visitors” to the practice.

FP, family practitioner.