Patient decision aids: a content analysis based on a decision tree structure

Table 6 Frequency of clustered options

	Yes	No	NA	Yes/Unclear^a
Clustered options	7	10	2	1

^aIt was unclear whether the options were clustered or not, but there is a possibility that they were. Namely, the option “lifestyle changes” includes several options like diet, exercise, sleeping patterns, etc.; do these have any effect on the health problem separately or only when taken together?