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Meta-Analysis
. 2001 Jul 14;323(7304):75-81.
doi: 10.1136/bmj.323.7304.75.

A score for predicting risk of death from cardiovascular disease in adults with raised blood pressure, based on individual patient data from randomised controlled trials

S J Pocock  1 , V McCormack, F Gueyffier, F Boutitie, R H Fagard, J P Boissel
Affiliations
Meta-Analysis

A score for predicting risk of death from cardiovascular disease in adults with raised blood pressure, based on individual patient data from randomised controlled trials

S J Pocock et al. BMJ. .

Abstract

Objective: To create a risk score for death from cardiovascular disease that can be easily used.

Design: Data from eight randomised controlled trials of antihypertensive treatment.

Setting: Europe and North America.

Participants: 47 088 men and women from trials that had differing age ranges and differing eligibility criteria for blood pressure. MAIN OTUCOME MEASURE: 1639 deaths from cardiovascular causes during a mean 5.2 years of follow up.

Results: Baseline factors were related to risk of death from cardiovascular disease using a multivariate Cox model, adjusting for trial and treatment group (active versus control). A risk score was developed from 11 factors: age, sex, systolic blood pressure, serum total cholesterol concentration, height, serum creatinine concentration, cigarette smoking, diabetes, left ventricular hypertrophy, history of stroke, and history of myocardial infarction. The risk score is an integer, with points added for each factor according to its association with risk. Smoking contributed more in women and in younger age groups. In women total cholesterol concentration mattered less than in men, whereas diabetes had more of an effect. Antihypertensive treatment reduced the score. The five year risk of death from cardiovascular disease for scores of 10, 20, 30, 40, 50, and 60 was 0.1%, 0.3%, 0.8%, 2.3%, 6.1%, and 15.6%, respectively. Age and sex distributions of the score from the two UK trials enabled individual risk assessment to be age and sex specific. Risk prediction models are also presented for fatal coronary heart disease, fatal stroke, and all cause mortality.

Conclusion: The risk score is an objective aid to assessing an individual's risk of cardiovascular disease, including stroke and coronary heart disease. It is useful for physicians when determining an individual's need for antihypertensive treatment and other management strategies for cardiovascular risk.

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Figures

Figure 1
Figure 1
Risk scores for cardiovascular disease in men and women
Figure 2
Figure 2
Relation between risk score and probability of dying from cardiovascular disease in five years
Figure 3
Figure 3
Distribution of risk scores by sex and age group. ▵ is median score. Vertical lines indicate 20th, 80th, 90th, and 95th centiles. Horizontal line covers 2nd to 98th centile. Each score distribution is skewed to right, and there are two modes in each distribution, for non-smokers and smokers
See this image and copyright information in PMC

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