Coronary heart disease prevention: insights from modelling incremental cost effectiveness.

Abstract:

OBJECTIVE:To determine which treatments for preventing coronary heart disease should be offered to which patients by assessing their incremental cost effectiveness. DESIGN:Modelling study. DATA SOURCES:Cost estimates (for NHS) and estimates of effectiveness obtained for aspirin, antihypertensive drugs, statins and clopidogrel. DATA SYNTHESIS:Treatment effects were assumed to be independent, and cost per coronary event prevented was calculated for treatments individually and in combination across patients at a range of coronary risks. RESULTS:The most cost effective preventive treatments are aspirin, initial antihypertensive treatment (bendrofluazide and atenolol), and intensive antihypertensive treatment (bendrofluazide, atenolol and enalapril), whereas simvastatin and clopidogrel are the least cost effective (cost per coronary event prevented in a patient at 10% coronary risk over five years is 3500 pounds sterling for aspirin, 12 500 pounds sterling for initial antihypertensives, 18 300 pounds sterling for intensive antihypertensives, 60 000 pounds sterling for clopidogrel, and 61 400 pounds sterling for simvastatin). Aspirin in a patient at 5% five year coronary risk costs less than a fifth as much per event prevented (7900 pounds sterling) as simvastatin in a patient at 30% five year risk (40 800 pounds sterling). DISCUSSION:A cost effective prevention strategy would offer aspirin and initial antihypertensive treatment to all patients at greater than 7.5% five year coronary risk before offering statins or clopidogrel to patients at greater than 15% five year coronary risk. Incremental cost effectiveness analysis of treatments produces robust, practical cost effectiveness rankings that can be used to inform treatment guidelines.

journal_name

BMJ

authors

Marshall T

doi

10.1136/bmj.327.7426.1264

keywords:

subject

Has Abstract

pub_date

2003-11-29 00:00:00

pages

1264

issue

7426

eissn

0959-8138

issn

1756-1833

pii

327/7426/1264

journal_volume

327

pub_type

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