The effects of air pollution on hospitalizations for cardiovascular disease in elderly people in Australian and New Zealand cities
| Autor: | Adrian G. Barnett, Anna Petroeschevsky, Anne Neller, Rod Simpson, Gail M. Williams, Joel Schwartz, Trudi Best |
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| Rok vydání: | 2006 |
| Předmět: |
Gerontology
Adult Time Factors Adolescent Health Toxicology and Mutagenesis air pollution Air pollution Disease 010501 environmental sciences medicine.disease_cause 01 natural sciences 03 medical and health sciences 0302 clinical medicine Age Distribution Patient Admission cardiovascular disease Environmental health Elderly people Medicine Humans 030212 general & internal medicine 0105 earth and related environmental sciences Aged business.industry Research Public Health Environmental and Occupational Health Australia Urban Health Middle Aged humanities 3. Good health Hospitalization meta-analysis 13. Climate action Cardiovascular Diseases Age distribution business Urban health New Zealand |
| Zdroj: | Environmental Health Perspectives |
| ISSN: | 0091-6765 |
| Popis: | Objective The goal of this study was to estimate the associations between outdoor air pollution and cardiovascular hospital admissions for the elderly Design Associations were assessed using the case–crossover method for seven cities: Auckland and Christchurch, New Zealand; and Brisbane, Canberra, Melbourne, Perth, and Sydney Australia. Results were combined across cities using a random-effects meta-analysis and stratified for two adult age groups: 15–64 years and ≥ 65 years of age (elderly). Pollutants considered were nitrogen dioxide, carbon monoxide, daily measures of particulate matter (PM) and ozone. Where multiple pollutant associations were found, a matched case–control analysis was used to identify the most consistent association. Results In the elderly, all pollutants except O3 were significantly associated with five categories of cardiovascular disease admissions. No associations were found for arrhythmia and stroke. For a 0.9-ppm increase in CO, there were significant increases in elderly hospital admissions for total cardiovascular disease (2.2%), all cardiac disease (2.8%), cardiac failure (6.0%), ischemic heart disease (2.3%), and myocardial infarction (2.9%). There was some heterogeneity between cities, possibly due to differences in humidity and the percentage of elderly people. In matched analyses, CO had the most consistent association. Conclusions The results suggest that air pollution arising from common emission sources for CO, NO2, and PM (e.g., motor vehicle exhausts) has significant associations with adult cardiovascular hospital admissions, especially in the elderly, at air pollution concentrations below normal health guidelines. Relevance to clinical and professional practice Elderly populations in Australia need to be protected from air pollution arising from outdoor sources to reduce cardiovascular disease. |
| Databáze: | OpenAIRE |
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