Table 3

Indicators tested, number of practices for which we were able to derive each indicator, and mean values

Indicator no.	Primary care intervention and indicators	No. of practices in which we could derive indicator	Mean value in primary care group % (expected UK values)
	Aspirin therapy for high risk patients
1	% of population with a diagnosis of ischaemic heart disease (IHD)	18	4.4 (expected value in this age group 6–7%)²⁶
2	% of population with a diagnosis of IHD who take aspirin	18	70
3	% of population with a diagnosis of ischaemic stroke or transient ischaemic attacks (TIAs)	10	0.7 (expected value in this age group 1%)²⁷
4	% of population with a diagnosis of stroke or TIAs who take aspirin	10	69
	Detection and control of hypertension
5	% of population who have had their BP recorded in the previous five years	15	37
6	% of population with a diagnosis of hypertension (denominator for indicators 7 and 8)	14	8.1 (expected value in this age group could be as high as 30%²⁸ depending on definition)
7	% of population identified as hypertensive whose most recent systolic BP is <160 mm Hg	12	67
8	% of population identified as hypertensive whose most recent diastolic BP is <90 mm Hg	12	59
9	% of population identified as hypertensive who have had their BP recorded in the previous year	12	67
10	% of those with a diagnosis of IHD who have had their BP recorded in the previous year	18	76
11	% of those with a diagnosis of ischaemic stroke or TIA who have had their BP recorded in the previous year	10	78
12	% of population with a diagnosis of diabetes mellitus (denominator for indicators 13 and 14)	17	2.4 (expected value in this age group 1–2%)²⁹
13	% of those identified with diabetes mellitus whose most recent systolic BP is <160 mm Hg	12	75
14	% of those identified with diabetes mellitus whose most recent diastolic BP is <90 mm Hg	12	74
	Smoking cessation advice
15	% of population who have their smoking status recorded	17	52
16	% of population who are current smokers and have received smoking cessation advice	3	34
17	% of those with a diagnosis of IHD who have their smoking status recorded	18	92
18	% of those with a diagnosis of IHD who are current smokers who have received smoking cessation advice	18	53
19	% of those with a diagnosis of ischaemic stroke or TIA who have their smoking status recorded	10	96
20	% of those with a diagnosis of ischaemic stroke or TIA who are current smokers who have received smoking cessation advice	10	74
	Use of angiotensin converting enzyme inhibitors in those with heart failure
21	% of population with a diagnosis of heart failure (denominator for indicator 22)	11	0.3 (expected value in this age group 2–3%)^{30 31}
22	% of population with heart failure who have a prescription for ACE inhibitors	11	52
	Lipid lowering drugs for patients with established cardiovascular disease
23	% of those with a diagnosis of IHD who have had a cholesterol measurement	18	76
24	% of those with a diagnosis of IHD with a raised cholesterol who are prescribed lipid lowering drugs	18	60
	Warfarin or aspirin for stroke prophylaxis in non-valvular atrial fibrillation (NVAF)
25	% of population with a diagnosis of NVAF (denominator for indicator 26)	11	0.4 (expected value in this age group 2%)^{32 33}
26	% of those with a diagnosis of NVAF who have a prescription for anticoagulants or aspirin	11	72