Table 5.

Themes and Codes identified within analysis

Theme	Codes
Managing blood pressure at home	Home monitoring an empowering process
	Home monitoring overcomes the problem of clinical inertia
	Home monitoring could save (or cost) time
	Patients may get obsessed with monitoring their blood pressure
	Home monitoring might be anxiety provoking
	Usual practice for managing high blood pressure
	Currently no system for recording home readings in practice
	Are home readings accurate?
	Home monitoring overcomes problems of white coat hypertension
	Useful that home readings are emailed to practitioners
	A system for responding to emails from HOME BP
Agreeing medication changes in advance	Understanding medication changes in advance may be empowering for patients
	Concerns about choosing medication changes in advance
	Potential solutions to problems with choosing medication changes in advance
	Does the baseline medication review need to be longer to allow explanation of medication changes?
Supporting patients using HOME BP	Useful that HOME BP provides support with behaviour change
	Supporters role with behaviour change viewed as important
	Supporter’s guide accessible
	Practitioners value building patient autonomy (avoiding dependence on practitioners)
	Perceptions of non-directive support using CARE
	Perceptions of congratulating patients using CARE
	Perceptions of reassuring patients using CARE
	Desire to see the patient intervention
	Lack of time to provide support