Table 4.

Relative attribute importance^a.

Group		Value, n	Characteristics of health apps
			Published study	NHSb stamp of approval	Cost	Used health apps personally	Patient age	Recommended by another HCPc
All		222	7	10	6	4.4	4.3	5.4
Use health apps personally
	Yes	169	7.2	10	5.8	4.8	4.6	5.5
	No	53	7.5	10	3.9	1.6	3.1	3.9
Previously prescribed health apps to patient
	Yes	139	6.2	10	6.3	4.5	4.3	4.8
	No	83	8.8	10	6	3.5	3.3	5.1
Age (years)
	>46	113	5.8	10	7.1	4	4.1	5.2
	<46	109	9.1	10	5.4	4.6	5.3	5.4
Role
	General practitioner	32	6.8	10	5.6	2.2	3.6	3
	Allied health professional	86	5.1	10	6.2	4.3	6.3	4.7
	Secondary care physician	40	6.7	10	2.6	6.3	5.8	7.4
	Nurse	27	8.3	10	0.5	3.3	0.4	6.6

^aStandardized relative attribute importance (RAI) for each attribute was calculated across the subgroups to allow for across subgroups comparisons. First, an RAI was calculated for each attribute by taking the difference between the most and least preferred levels. The RAI was then standardized across subgroups by dividing it by the RAI of the most important attribute across the subgroups (NHS stamp of approval) and multiplying it by 10. The resulting number indicates the relative importance of each attribute across the subgroups (where a higher number indicates a relatively more important attribute).

^bNHS: National Health Service.

^cHCP: health care professional.