Table 2.

Baseline characteristics of men in Framingham studies and British regional heart study without pre-existing cardiovascular disease and with complete data on risk factors

Characteristic	Framingham (n=2590)*	British regional heart study (n=6643)
Period of baseline data collection	1968-75	1978-80
10 year coronary heart disease mortality (%)	NA	2.8
10 year coronary heart disease event rate (%)	12.4	10.2
Age range (years) at baseline	30-74	40-59
Smoking (%)	40.7	41.9
Diabetes (%)	7.1	1.1
Electrocardiographic evidence of left ventricular hypertrophy (%)	1.1	2.6
Median (95% CI) blood pressure (mm Hg):
Systolic blood pressure	128 (109 to 168)	143 (115 to 182)
Diastolic blood pressure	82 (69 to 102)	81 (62 to 105)
Median ratio (95% CI) of total to high density lipoprotein cholesterol	4.8 (2.9 to 8.0)	5.5 (3.5 to 8.6)

NA=not available.

^*From Anderson et al.¹⁰