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Type: Journal article
Title: A comparison of outcomes with angiotensin-converting-enzyme inhibitors and diuretics for hypertension in the elderly
Author: Wing, L.
Reid, C.
Ryan, P.
Beilin, L.
Brown, M.
Jennings, G.
Johnston, C.
McNeil, J.
MacDonald, G.
Marley, J.
Morgan, T.
West, M.
Citation: New England Journal of Medicine, 2003; 348(7):583-592
Publisher: Massachusetts Medical Soc
Issue Date: 2003
ISSN: 0028-4793
Statement of
Lindon M.H. Wing, Christopher M. Reid, Philip Ryan, Lawrence J. Beilin, Mark A. Brown, Garry L.R. Jennings, Colin I. Johnston, John J. McNeil, Graham J. Macdonald, John E. Marley, Trefor O. Morgan, and Malcolm J. West, for the Second Australian National Blood Pressure Study Group
Abstract: Background Treatment of hypertension with diuretics, beta-blockers, or both leads to improved outcomes. It has been postulated that agents that inhibit the renin–angiotensin system confer benefit beyond the reduction of blood pressure alone. We compared the outcomes in older subjects with hypertension who were treated with angiotensin-converting–enzyme (ACE) inhibitors with the outcomes in those treated with diuretic agents. Methods We conducted a prospective, randomized, open-label study with blinded assessment of end points in 6083 subjects with hypertension who were 65 to 84 years of age and received health care at 1594 family practices. Subjects were followed for a median of 4.1 years, and the total numbers of cardiovascular events in the two treatment groups were compared with the use of multivariate proportional-hazards models. Results At base line, the treatment groups were well matched in terms of age, sex, and blood pressure. By the end of the study, blood pressure had decreased to a similar extent in both groups (a decrease of 26/12 mm Hg). There were 695 cardiovascular events or deaths from any cause in the ACE-inhibitor group (56.1 per 1000 patient-years) and 736 cardiovascular events or deaths from any cause in the diuretic group (59.8 per 1000 patient-years; the hazard ratio for a cardiovascular event or death with ACE-inhibitor treatment was 0.89 [95 percent confidence interval, 0.79 to 1.00]; P=0.05). Among male subjects, the hazard ratio was 0.83 (95 percent confidence interval, 0.71 to 0.97; P=0.02); among female subjects, the hazard ratio was 1.00 (95 percent confidence interval, 0.83 to 1.21; P=0.98); the P value for the interaction between sex and treatment-group assignment was 0.15. The rates of nonfatal cardiovascular events and myocardial infarctions decreased with ACE-inhibitor treatment, whereas a similar number of strokes occurred in each group (although there were more fatal strokes in the ACE-inhibitor group). Conclusions Initiation of antihypertensive treatment involving ACE inhibitors in older subjects, particularly men, appears to lead to better outcomes than treatment with diuretic agents, despite similar reductions of blood pressure.
Keywords: Second Australian National Blood Pressure Study Group
Cardiovascular Diseases
Antihypertensive Agents
Angiotensin-Converting Enzyme Inhibitors
Drug Therapy, Combination
Prospective Studies
Sex Factors
Blood Pressure
Aged, 80 and over
Description: Copyright © 2003 Massachusetts Medical Society. All rights reserved.
DOI: 10.1056/NEJMoa021716
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