The Blood Pressure Lowering Treatment Trialists' Collaboration
Funder
National Health and Medical Research Council
Funding Amount
$166,250.00
Summary
Treatments that lower blood pressure are well known to reduce the risk of heart attack and stroke, and several different classes of blood pressure lowering drug are now widely used. While all the main classes of drug offer protection against serious complications, it is possible that one drug class may be better than the others. However, whether this is so remains uncertain and cannot be reliably determined by any one single study. The Blood Pressure Lowering Treatment Trialists' Collaboration i ....Treatments that lower blood pressure are well known to reduce the risk of heart attack and stroke, and several different classes of blood pressure lowering drug are now widely used. While all the main classes of drug offer protection against serious complications, it is possible that one drug class may be better than the others. However, whether this is so remains uncertain and cannot be reliably determined by any one single study. The Blood Pressure Lowering Treatment Trialists' Collaboration is a large international project led by a group of Australian researchers based at the Institute for International Health in Sydney. The aim of the project is to systematically gather together sufficient information from large-scale studies to make it possible to answer important outstanding questions about the effects of different classes of blood pressure lowering drugs on major outcomes, such as heart attack and stroke. The Collaboration includes many of the leading blood pressure researchers from around the world and will combine data from more than 30 trials and over 200,000 individuals. On the basis of the overview results it should be possible to provide doctors with important new information about the best blood pressure lowering treatment for their patients. A previous review of the effects of blood pressure drugs completed by the same group was published in The Lancet in 2000, and has been an important aid to many professional and regulatory groups in the year since. Reliable information about the effects of different classes of blood pressure lowering drugs is of great importance. Even if differences between the effects of different classes of drug are small, the implications for the prevention of blood pressure-related complications would be substantial because of the very large numbers of people taking them, worldwide. This collaborative overview project offers a unique opportunity to provide the most reliable and up-to-date information on the subject.Read moreRead less
Risk Factors For Chronic Respiratory Diseases In Middle Age: 36-year Follow-up Of The Tasmanian Asthma Study
Funder
National Health and Medical Research Council
Funding Amount
$358,750.00
Summary
This project will improve our understanding of the causes of chronic respiratory diseases (CRDs) in adults. CRDs are clearly a major public health problem, but there are no good data on the natural history and risk factors for these diseases. Regular follow-up through childhood to adulthood is the best method to examine these factors, but such data is lacking due to difficulties in conducting long-term studies. The Tasmanian Asthma Study (TAS), based on 8,585 Tasmanians (i.e. probands) born in 1 ....This project will improve our understanding of the causes of chronic respiratory diseases (CRDs) in adults. CRDs are clearly a major public health problem, but there are no good data on the natural history and risk factors for these diseases. Regular follow-up through childhood to adulthood is the best method to examine these factors, but such data is lacking due to difficulties in conducting long-term studies. The Tasmanian Asthma Study (TAS), based on 8,585 Tasmanians (i.e. probands) born in 1961, is one of the worlds most important resources of such information. The probands, their parents (16,267) and siblings (21,044) were first investigated for respiratory problems in 1968. Subsequently, three follow-up surveys were carried out at ages 13 (1974), 20 (1981) and 31 (1992) on either the total or sub-samples of the probands. In 1992, the children and spouses of the probands were also surveyed. Information on all respiratory problems was collected in all the follow-ups, although the main focus of the TAS to date has been asthma. The probands are now reaching the age at which all CRD as a group are beginning to inflict an increasing disease burden, which will become greater in the next two decades. Hence, TAS now provides an ideal opportunity to examine the potential risk factors and natural history of and of CRDs using data collected to date and new data collected at age 43. Also, it will provide a platform for future studies to investigate the progression of CRDs in this cohort. Hence, we propose to carry out the 36 year follow-up of this cohort focusing on CRDs. This will provide important information for preventing chronic respiratory morbidity and disability in the future, which will be original and significant not only in Australia but also internationally.Read moreRead less
Epidemiology Of Middle-age BHR: A Prospective Study From Childhood To Middle Age
Funder
National Health and Medical Research Council
Funding Amount
$593,840.00
Summary
Increased airway reactivity (BHR) in middle-age increases the risk of chronic respiratory diseases (CRDs) in old age, which are recognised as a major public health problem. Knowledge on the causes of these conditions is currently limited. This project will improve our understanding of the childhood and adult causes of increased reactivity of the airways in middle-age. Such knowledge will help in identifying preventive strategies for middle age BHR and thereby CRDs in old age.
Collaborative Overview Of Cohort Studies Of Cardiovascular Diseases In The Asia Pacific Region
Funder
National Health and Medical Research Council
Funding Amount
$230,388.00
Summary
Throughout Asia and the Pacific, cardiovascular diseases are now a leading cause of death and disability. However, most information about the causes of these diseases comes from studies conducted in North America and Europe, and there are few data available from the Asia Pacific region. Because patterns of cardiovascular diseases and levels of risk factors are very different in the West and East, it is possible that important differences exist in the relative contribution of different factors to ....Throughout Asia and the Pacific, cardiovascular diseases are now a leading cause of death and disability. However, most information about the causes of these diseases comes from studies conducted in North America and Europe, and there are few data available from the Asia Pacific region. Because patterns of cardiovascular diseases and levels of risk factors are very different in the West and East, it is possible that important differences exist in the relative contribution of different factors to disease occurrence in different regions. For example, an earlier project, from which the current study evolved, demonstrated that the association of blood pressure with stroke was about two times steeper in China and Japan than in the West. The present project has been initiated to further investigate the causes of common cardiovascular diseases in populations of the Asia Pacific region. It will involve more than 40 studies conducted in at least 9 countries from the region. These studies include more than 500,000 individuals followed for an average of 8-9 years. Data from 30 studies involving 450,000 individuals has already been provided to the applicants. Analyses will be conducted to provide region-, age-and sex-specific estimates of the effects various risk factors on several types of cardiovascular diseases. The risk factors of interest include: blood pressure, total cholesterol and its subfractions, triglycerides, diabetes, obesity, alcohol consumption, occupation and education. In addition to providing more precise estimates of the effects of established risk factors such as blood pressure, this project will, provide new data on several other risk factors not well investigated in this region. The results should be of importance in determining priorities for cardiovascular disease prevention. They should also be of relevance for predicting changes in the extent of the cardiovascular disease epidemics facing countries in the region.Read moreRead less