Table 2.

Participants: unique identifier, role, and additional characteristics

Unique identifier	Site	Role	Sex	Ethnicity (self- described)	Additional information (provided at interview)
PracticeManager-1	1	Practice manager	Female	White British	Managing partner
YoungPerson-1	1	Young person with ADHDa	Male	White British	Aged 20 years, student
YoungPerson-2	1	Young person with ADHDa	Female	White British	Aged 24 years, graduate
GP-1	2	GPa	Female	White British	Commissioning experience/role, ADHD in family
GP-2	2	GP	Male	White British	ADHD in family
PracticeManager-2	2	Practice manager	Female	White British	Possible undiagnosed ADHD, ADHD in family
YoungPerson-3	2	Young person with ADHD	Female	White	Aged 24 years, mother
Supporter-1	2	Supporter of young person with ADHD	Male	White British	Grandfather
YoungPerson-4	3	Young person with ADHDa	Male	White British	Aged 17 years, apprentice
Supporter-2	3	Supporter of young person with ADHDa	Female	White British	Mother
GP-3	3	GP	Female	British mixed	Commissioning experience/role, ADHD in family
PracticeManager-3	3	Practice manager	Female	White British	—
PracticeManager-4	4	Practice manager	Female	White	—
WellbeingWorker	4	Wellbeing worker	Female	White other	Neurodiverse
GP-4	4	GP	Male	Irish	—
YoungPerson-5	4	Young person with ADHD	Female	White British	Aged 24 years, student
Supporter-3	5	Supporter of young person with ADHDa	Female	White British	Mother
YoungPerson-6	5	Young person with ADHDa	Female	White British	Aged 22 years, on a break from university
PracticeManager-5	5	Practice manager	Female	British Pakistani	—
GP-5	5	GP	Male	British Pakistani	Commissioning experience/role

^a Participant recruited via Managing young people (aged 16–25) with ADHD in Primary care study¹⁹ (instead of via site) from location within same local area as practice research site. ADHD = attention deficit hyperactivity disorder.