Showing papers by "Bruce Neal published in 1999"

1999 World Health Organization-International Society of Hypertension Guidelines for the management of hypertension. Guidelines sub-committee of the World Health Organization.

Abstract: The present Guidelines were prepared by the Guidelines Sub-Committee of the World Health Organization-International Society of Hypertension (WHO-ISH) Mild Hypertension Liaison Committee, the members of which are listed at the end of the text. These guidelines represent the fourth revision of the WHO-ISH Guidelines and were finalised after presentation and discussion at the 7th WHO-ISH Meeting on Hypertension, Fukuoka, Japan, 29th Sept-1st Oct, 1998. Previous versions of the Guidelines were published in Bull WHO 1993, 71:503-517 and J Hypertens 1993, 11:905-918.

The World Health Organization--International Society of Hypertension Blood Pressure Lowering Treatment Trialists' Collaboration: prospective collaborative overviews of major randomized trials of blood pressure-lowering treatments.

Abstract: Clear evidence shows that decreasing blood pressure reduces risks for major cardiovascular events in patients with hypertension. However, there is considerable uncertainty about the separate effects of the various classes of blood pressure-lowering agents and the effects of blood pressure lowering in patients at high risk, particularly in the absence of hypertension. Several new randomized controlled trials have been started in the past few years in an effort to address these questions. However, individually, these studies are unlikely to resolve all current uncertainties. For this reason, systematic overviews and meta-analyses of the major ongoing trials are planned. The overviews will be conducted as a collaboration among the principal investigators of the participating trials and will involve about 270,000 patients and 1.1 million patient-years of follow-up. The combined trial results should provide good statistical power to detect even modest differences in the effects of various treatments on major cardiovascular outcomes.

An overview of 37 randomised trials of blood pressure lowering agents among 270,000 individuals

Abstract: Overviews (meta-analyses) of the major ongoing randomized trials of blood pressure lowering drugs will be conducted to determine the effects of: first, newer versus older classes of blood pressure lowering drugs in patients with hypertension; and second, blood pressure lowering treatments versus untreated or less treated control conditions in patient groups at high risk of cardiovascular events. The principal study outcomes are stroke, coronary heart disease, total cardiovascular events and total cardiovascular deaths. The overviews have been prospectively designed and will be conducted on individual patient data. The analyses will be conducted as a collaboration between the principal investigators of participating trials involving about 270,000 patients. Full data should be available in 2003, with the first round of analyses performed in 1999–2000. The combination of trial results should provide good statistical power to detect even modest differences between the effects on the main study outcomes.