Table 3.

Mean percentage of GPs that perceive various types of barriers, based on 16 recommendations from 4 guidelines (n = 264)

	Mean %	SD	Range	[min, max]
	across all 16 recommendations
Knowledge related barriers
Lack of awareness/familiarity	9.0	6.2	20.3	(1.7-22.0)
Attitude related barriers
Lack of agreement
Lack of evidence	12.2	3.8	13.6	(5.1-18.7)
Lack of applicability in general	22.4	13.4	42.5	(5.0-47.5)
Lack of applicability to patients	25.2	9.1	34.9	(11.0-45.9)
Lack of self-efficacy	10.8	13.0	49.6	(0.0-49.6)
Lack of outcome expectancy	9.6	5.3	17.7	(1.7-19.4)
Inertia of previous practice/lack of motivation	16.9	7.5	25.8	(3.9-29.7)
External barriers
Patient factors
Patient preferences	23.0	15.4	67.4	(8.8-76.2)
Patient ability and behaviour	29.7	9.5	33.6	(11.7-45.3)
Guideline factors
Guideline recommendation factors	12.1	6.2	20.5	(2.4-22.9)
Environmental factors
Lack of time/time pressure	12.7	14.1	51.7	(0.8-52.5)
Lack of resources/materials	6.1	7.4	23.3	(0.8-24.1)
Organisational constraints	13.9	9.1	30.1	(4.4-34.5)
Lack of reimbursement	3.8	5.1	15.2	(0.0-15.2)