Table 4. Utility scores, mean importance and relative importance for each variable in Task 2.

Variable	Option	Mean Utility score	SEM	Mean importance (%)
Drug label status	On label	0.3305	0.04	10
	Off label	−0.3305
Frequency of visits	Monthly	0.5000	0.16	18
	2 Monthly	1.0000
Vision	Good	−2.2236	0.07	61
	Moderate	−4.4472
	Poor	−6.6708
Cost to NHS	Low cost	−0.4080	0.10	10
	High cost	−0.8161