Table 1.

Repartition of all stakeholder groups and subgroups with number planned to be recruited in each center

Participant groups	Characteristics	Place of recruitment
		Locally in each center*	International
Group 1: patients and carers		16
Patients	65–80 years old and living at home	6
	>80 years old and living at home	6
Carers	Living at home	2
Patient/carer	Nursing home	2
Group 2: health care professionals		13
Primary care	GP	6
	Pharmacists	1
	Nurses (1 at home; 1 in nursing home)	2
Secondary care	Physicians	2
	Clinical pharmacists	1
	Nurses	1
Group 3: scientifics and experts		5	20
Researchers specialized in medication review			20
Researchers in related fields (nonmedical)		2
Policy makers		2
Experts from professional associations		1
Total number to be recruited		136	20

Notes:

^*Four centers in total: University of Bern, Switzerland; University College Cork, Ireland; Université catholique de Louvain, Belgium; University Medical Centre Utrecht, Netherlands.

Abbreviation: GP, general practitioner.