Change search
ReferencesLink to record
Permanent link

Direct link
The effect of temperature on cardiovascular disease hospital admissions among elderly people in Thai Nguyen Province, Vietnam
Show others and affiliations
2014 (English)In: Global Health Action, ISSN 1654-9716, E-ISSN 1654-9880, Vol. 7, 23649Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: Projected increases in weather variability due to climate change will have severe consequences on human health, increasing mortality, and disease rates. Among these, cardiovascular diseases (CVD), highly prevalent among the elderly, have been shown to be sensitive to extreme temperatures and heat waves. OBJECTIVES: This study aimed to find out the relationship between daily temperature (and other weather parameters) and daily CVD hospital admissions among the elderly population in Thai Nguyen province, a northern province of Vietnam. METHODS: Retrospective data of CVD cases were obtained from a data base of four hospitals in Thai Nguyen province for a period of 5 years from 2008 to 2012. CVD hospital admissions were aggregated by day and merged with daily weather data from this period. Distributed lag non-linear model (DLNM) was used to derive specific estimates of the effect of weather parameters on CVD hospital admissions of up to 30 days, adjusted for time trends using b-splines, day of the week, and public holidays. RESULTS: This study shows that the average point of minimum CVD admissions was at 26°C. Above and below this threshold, the cumulative CVD admission risk over 30 lag days tended to increase with both lower and higher temperatures. The cold effect was found to occur 4-15 days following exposure, peaking at a week's delay. The cumulative effect of cold exposure on CVD admissions was statistically significant with a relative risk of 1.12 (95% confidence interval: 1.01-1.25) for 1°C decrease below the threshold. The cumulative effect of hot temperature on CVD admissions was found to be non-significant and was estimated to be at a relative risk of 1.17 (95% confidence interval: 0.90-1.52) for 1°C increase in the temperature. No significant association was found between CVD admissions and the other weather variables. CONCLUSION: Exposure to cold temperature is associated with increasing CVD admission risk among the elderly population.

Place, publisher, year, edition, pages
Co-Action publishing , 2014. Vol. 7, 23649
Keyword [en]
hospital admission, cardiovascular diseases, temperature, distributed lag non-linear model
National Category
Public Health, Global Health, Social Medicine and Epidemiology
URN: urn:nbn:se:umu:diva-97485DOI: 10.3402/gha.v7.23649ISI: 000346188600007PubMedID: 25511886OAI: diva2:773162

Special Issue: Climate Change and Health in Vietnam

Available from: 2014-12-18 Created: 2014-12-18 Last updated: 2016-06-27Bibliographically approved

Open Access in DiVA

fulltext(696 kB)138 downloads
File information
File name FULLTEXT01.pdfFile size 696 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full textPubMed

Search in DiVA

By author/editor
Rocklöv, Joacim
By organisation
Epidemiology and Global Health
In the same journal
Global Health Action
Public Health, Global Health, Social Medicine and Epidemiology

Search outside of DiVA

GoogleGoogle Scholar
Total: 138 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 46 hits
ReferencesLink to record
Permanent link

Direct link