Table 4 Results of the 2nd validation of the revised IMed questionnaire (total n = 25) and 1st validation of the IMed diary (total n = 25) (N/A = not available, i.e. this answer option was not available).

Questions	Totaln (%)	Yesn (%)	Non (%)	To some extentn (%)	Donʼt known (%)
IMed questionnaire
Were the questions comprehensible?	25 (100)	24 (96)	0 (0)	1 (4)	0 (0)
Were the questions too complicated?	25 (100)	0 (0)	24 (96)	1 (4)	0 (0)
Was the questionnaire too long?	25 (100)	2 (8)	23 (92)	N/A	0 (0)
Did you like the questionnaire?	25 (100)	17 (72)	0 (0)	4 (16)	3 (12)
Do you have suggestions for improvement?	25 (100)	1 (4)	14 (56)	N/A	10 (40)
IMed diary
Were the questions comprehensible?	25 (100)	24 (96)	0 (0)	1 (4)	0 (0)
Were the questions too complicated?	25 (100)	0 (0)	23 (92)	2 (8)	0 (0)
Was the questionnaire too long?	25 (100)	2 (8)	23 (92)	N/A	0 (0)
Did you like the questionnaire?	25 (100)	18 (72)	0 (0)	4 (16)	3 (12)
Do you have suggestions for improvement?	25 (100)	1 (4)	14 (56)	N/A	10 (40)