Table 3.

Treatment characteristics for discrete choice experiment

Characteristics	Positive pole (+)	Negative pole (−)
Life expectancy	maximal increase	moderate increase
Long term side effects	improbable (<20% of patients)	possible (≥20% of patients)
Flexibility of dosing	max. 3 tablets/day	≥4 tablets/day
Physical quality of life	diarrhoea or nausea less frequent	diarrhoea or nausea more frequent
Emotional quality of life	disease not obvious for others	disease obvious for others
Social quality of life	participation in social life possible	participation in social life restricted