Table 1.

Measures used to assess the effects of audiotape provision.

	Variable	Measure used
Matching variables (gathered from all participants)	Age
	Sex
	Frequency of consultation in last 6 months
	Control over condition: extent to which patients felt they could maintain good health through their own actions	4-point scale
	Understanding: patients rated how much they understood the consultation at the time they left the GP	5-point scale
	Satisfaction: patients rated their satisfaction with the consultation at the time they left the GP	5-point scale
Outcome variables (all participants)	Adherence: level of concordance with GP's advice at the time of follow-up	5-point scale
	Anxiety: how anxious patients felt at time of follow-up	5-point scale
Tape use:
All	How many times listened?
Non-listeners	Reason for not listening
Listeners	Understanding of consultation: after listening to the tape	5-point scale
	Usefulness of tape	5-point scale
	Extra information: item(s) on the tape that had not been heard during the consultation	Yes/No
	Did anyone else listen?	Yes/No
	Who?
	How helpful was sharing the tape?	5-point scale