Table 2.

Physicians' Willingness to Encourage Hypertensive Patients to Enroll in an Active-controlled Trial (ACT) or Placebo-controlled Trial (PCT)

	Willingness to Encourage Enrollment in a PCT
Willingness to Encourage Enrollment in an ACT	Definitely Not	Probably Not	Not Sure	Probably	Definitely	Total
Definitely not	27	2	1	2	0	32
Probably not	12	61	3	13	5	94
Not sure	8	41	30	7	0	86
Probably	35	147	33	108	3	326
Definitely	15	30	8	31	22	106
Total	97	281	75	161	30	644

Italicized numbers along the table's diagonal represent physicians who were equally willing to encourage enrollment in either trial. Physicians represented by numbers below the diagonal were more willing to encourage enrollment in the ACT. Physicians represented by numbers above the diagonal were more willing to encourage enrollment in the PCT. Physicians were more likely to encourage enrollment in the ACT (P < .0001 by Wilcoxon signed-rank test for matched pairs). Excluded from the table are 7 physicians who did not answer one or both questions.