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Ambient temperature and cardiorespiratory morbidity : a systematic review and meta-analysis

Turner, Lyle, Barnett, Adrian G., Connell, Des, & Tong, Shilu (2012) Ambient temperature and cardiorespiratory morbidity : a systematic review and meta-analysis. Epidemiology, 23(4), pp. 594-606.

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Abstract

BACKGROUND: The effect of extreme temperature has become an increasing public health concern. Evaluating the impact of ambient temperature on morbidity has received less attention than its impact on mortality.

METHODS: We performed a systematic literature review and extracted quantitative estimates of the effects of hot temperatures on cardiorespiratory morbidity. There were too few studies on effects of cold temperatures to warrant a summary. Pooled estimates of effects of heat were calculated using a Bayesian hierarchical approach that allowed multiple results to be included from the same study, particularly results at different latitudes and with varying lagged effects.

RESULTS: Twenty-one studies were included in the final meta-analysis. The pooled results suggest an increase of 3.2% (95% posterior interval = -3.2% to 10.1%) in respiratory morbidity with 1°C increase on hot days. No apparent association was observed for cardiovascular morbidity (-0.5% [-3.0% to 2.1%]). The length of lags had inconsistent effects on the risk of respiratory and cardiovascular morbidity, whereas latitude had little effect on either.

CONCLUSIONS: The effects of temperature on cardiorespiratory morbidity seemed to be smaller and more variable than previous findings related to mortality.

Impact and interest:

21 citations in Scopus
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19 citations in Web of Science®

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ID Code: 50647
Item Type: Journal Article
Funders: ARC
Keywords: hospital admissions, meta–analysis, heat effect, lagged effect, climate change
DOI: 10.1097/EDE.0b013e3182572795
ISSN: 1044-3983
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > PUBLIC HEALTH AND HEALTH SERVICES (111700) > Environmental and Occupational Health and Safety (111705)
Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > PUBLIC HEALTH AND HEALTH SERVICES (111700) > Epidemiology (111706)
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Public Health & Social Work
Funding:
Copyright Owner: Copyright 2012 Lippincott Williams & Wilkins
Deposited On: 04 Jun 2012 22:44
Last Modified: 02 Oct 2014 15:13

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