Table 1. Characteristics of participating healthcare professionals (GPs and GP assistants)

ID	Age category, years	Sex	Work experience, years	Region of work place	Type of general practice^a
*GPs*
GP1	26–35	F	0–5	South	Duo
GP2	36–45	M	11–15	South	Group
GP3	36–45	F	6–10	Middle	Duo
GP4	46–55	M	11–15	Middle	Healthcare centre
GP5	56–65	F	>25	North	Duo
GP6	26–35	F	0–5	South	Solo
GP7	46–55	M	11–15	Middle	Healthcare centre
GP8	46–55	M	>25	North	Group
GP9	36–45	F	6–10	Middle	Solo
GP10	36–45	F	6–10	South	Solo
*GPAs*
GPA1	56–65	F	11–15	Middle	Solo
GPA2	18–25	F	0–5	Middle	Group
GPA3	26–35	F	11–15	North	Duo
GPA4	36–45	F	16–20	South	Group
GPA5	18–25	F	0–5	Middle	Various
GPA6	26–35	F	11–15	Middle	Group
GPA7	46–55	F	0–5	Middle	Healthcare centre

^aIn The Netherlands, general practices can be run by one GP (solo), or by multiple GPs (duo or group). In healthcare centres various healthcare professionals (for example, a GP, dietician, a physical therapist, and/or a psychologist) work within the same building. F = female. GPA = GP assistant. M = male