Supplementary Table 1.

Questions asked to detect nocebo behaviour. *score of 1-5 for each of the four (A–D) questions. Total score (A+B+C+D) ranges from 4–20 (7).

Questions	Possible answers
A. I read the summary of product characteristics (SPC) before I take any medication	*1. Never, 2. Rarely, 3. Sometimes, 4. Often, 5. Always
B. I have stopped in the past medication, due to side effects
C. I ask my doctor for possible side effects of the drug I am on
D. Is of great importance to me, the side effects reported in the SPC