Table 2.

Prescriptions for Non-study and Study Medications by Clinic*

Clinic	Total Prescriptions	Non-study Medications		Study Medications
Clinic	Total Prescriptions	No.	%	No.	%
X^†	50,849	43,750	86.0	7099	14.0
Y	50,686	44,642	88.1	6044	11.9
Z	42,907	37,180	86.7	5727	13.4
Total	144,442	125,572	86.9	18,870	13.1

* P < .0001 using χ² test.
† Significantly different from the rest in proportions of prescriptions for study medications.