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A better indicator to measure the effects of meteorological factors on cardiovascular mortality: heat index
Yin, Qian1; Wang, Jinfeng1,2
2018-08-01
Source PublicationENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN0944-1344
Volume25Issue:23Pages:22842-22849
Corresponding AuthorWang, Jinfeng(wangjf@lreis.ac.cn)
AbstractAlthough many studies have examined the correlation between temperature and mortality from cardiovascular diseases (CVD), other meteorological factors, such as relative humidity, may modify the relationship. Yet the studies on this aspect are relatively few. We chose a heat index (HI, which is an index that combines air temperature and relative humidity) as an alternative indicator of temperature, and used a distributed lag nonlinear model (DLNM) to analyze the combined effects of temperature and relative humidity on CVD mortality among all of the Beijing residents and subsociodemographic groups by age, sex, and occupation. The heat index can better reflect the human-perceived temperature when relative humidity is combined with air temperature. The results show that females, elderly people, and outdoor workers have higher vulnerability levels in regard to a high heat index. The strongest effect of heat index was found among females, for which the highest mortality risk was about 2.4 (95% CI 1.8-3) times greater than the lowest mortality risk. In addition, we found that there is a significant interaction effect of temperature and relative humidity on CVD mortality. The impact of extreme high temperature may be exacerbated by increases in humidity. Based on these results, we draw the risk level map of CVD death under different temperatures and grades of relative humidity. These findings may aid governments in the development of more accurate heat alerts and the provision of measures to prevent or reduce temperature-related deaths.
KeywordHeat index Cardiovascular disease Temperature Relative humidity Combined effect Heat alert
DOI10.1007/s11356-018-2396-1
WOS KeywordHOSPITAL ADMISSIONS ; AIR-POLLUTION ; UNITED-STATES ; RELATIVE-HUMIDITY ; CLIMATE-CHANGE ; CASE-CROSSOVER ; TIME-SERIES ; WAVES ; CHINA ; TEMPERATURE
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41531179] ; National Natural Science Foundation of China[41421001] ; Ministry of Science and Technology of China[2014FY121100]
Funding OrganizationNational Natural Science Foundation of China ; Ministry of Science and Technology of China
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000441007000047
PublisherSPRINGER HEIDELBERG
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/54537
Collection中国科学院地理科学与资源研究所
Corresponding AuthorWang, Jinfeng
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, A11,Datun Rd, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Yin, Qian,Wang, Jinfeng. A better indicator to measure the effects of meteorological factors on cardiovascular mortality: heat index[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2018,25(23):22842-22849.
APA Yin, Qian,&Wang, Jinfeng.(2018).A better indicator to measure the effects of meteorological factors on cardiovascular mortality: heat index.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,25(23),22842-22849.
MLA Yin, Qian,et al."A better indicator to measure the effects of meteorological factors on cardiovascular mortality: heat index".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 25.23(2018):22842-22849.
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