Table 1

Characteristics of the study population in the year before and the year after publication of the National Service Framework for Coronary Heart Disease.

	Number at baseline	Percentage of baseline total (n = 54 567)	Number at follow-up	Percentage of follow-up total (n = 56 985)
Females	28 597	52.4	29 827	52.3
Males	25 970	47.6	27 158	47.7
Age (years)
35–44	13 582	24.9	14 330	25.1
45–54	14 486	26.5	14 546	25.5
55–64	10 707	19.6	11 418	20.0
65–74	8515	15.6	8679	15.2
≥75	7277	13.3	8012	14.1
Group A
CHD or stroke	5193	9.5	5784	10.2
Group B
Diabetes or hypertension^a	7288	13.4	8374	14.7
Group C
Remaining population	42 086	77.1	42 827	75.2

↵a Excluding those in group A. CHD = coronary heart disease.