Table 2.

 Patients’ recollection of information about the trial

		Yes (%)	No (%)	Do not remember (%)
“Did you understand that you were asked whether or not you would participate in a scientific study comparing two treatments?”	A	72	26	2
	B	53	40	8
“Which of the following issues were you informed about?”
Purpose of the study	A	72	10	17
	B	46	24	31
Potential benefits	A	40	20	39
	B	20	41	39
Potential risks	A	29	32	39
	B	17	49	35
That the treatment I would receive would be decided by drawing lots	A	79	10	11
	B	46	24	30
That participation was voluntary	A	89	3	8
	B	82	4	15
What treatment I would receive if I chose not to participate	A	53	23	25
	B	65	13	23

A, patients who participated in the trial (n = 103); B, patients who did not participate in the trial (n = 78).