Table 1 Search Terms

1.

choice behav*/

2.

decision making/

3.

shared decision making/

4.

information seeking behav*/

5.

help seeking behav*

6.

or/1–5

7.

((decision) adj (support* or aid or tool or instrument or technolog* or technique* or system* or program* or algorithm* or process* or method* or intervention* or material* or board* or guide* or counselling*)).tw.

8.

((decision support) adj (system* clinical or technolog*)).tw.

9.

education technology/

10.

communication package/

11.

decision tree*/

12

((risk) adj (communication or assessment)).tw.

13.

((risk information) adj (tool or method)).tw.

14

((interactive) adj (health communication or booklet or graphic or tool)).tw.

15.

((informed) adj (choice or decision)).tw.

16.

or/7–15

17.

clinical trial/

18.

((randomized or randomised) adj (controlled trial)).tw.

19.

controlled clinical trial/

20.

randomized/

21.

randomised/

22.

placebo/

23.

random/

24.

trial/

25.

double blind method/

26.

or/17–25

27.

6 and 16 and 26