Short-Term Effects of the 2008 Cold Spell on Mortality in Three Subtropical Cities in Guangdong Province, China

Xie, Huiyan; Ye, Zhibin; Zhang, Yonghui; Xu, Yanjun; Xu, Xiaojun; Liu, Tao; Lin, Hualiang; Lao, Xiang Qian; Rutherford, Shannon; Chu, Cordia; Huang, Cunrui; Baum, Scott; Ma, Wenjun

doi:10.1289/ehp.1104541

Cited by 112 publications

(91 citation statements)

References 47 publications

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“…Furthermore, the relative risk of cold-related CVD mortality was higher for females than males, while men were more sensitive to extreme heat temperatures than women. This finding is consistent with previous studies [27,[57][58][59]. The meta-analysis also showed that female CVD mortality was influenced more by cold temperatures, while males were more affected by hot temperatures (Figure 3).…”

Section: Discussionsupporting

confidence: 92%

Temperature and Cardiovascular Mortality Associations in Four Southern Chinese Cities: A Time-Series Study Using a Distributed Lag Non-Linear Model

Huang

Tan²,

2017

Sustainability

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Abstract:Few studies on population-specific health effects of extreme temperature on cardiovascular diseases (CVDs) deaths have been conducted in the subtropical and tropical climates of China. We examined the association between extreme temperature and CVD across four cities in China. We performed a two-stage analysis; we generated city-specific estimates using a distributed lag non-linear model (DLNM) and estimated the overall effects by conducting a meta-analysis. Heat thresholds of 29 • C, 29 • C, 29 • C, and 30 • C and cold thresholds of 6 • C, 10 • C, 14 • C, and 15 • C were observed in Hefei, Changsha, Nanning, and Haikou, respectively. The lag periods for heat-related CVD mortality were observed only for 0-2 days, while those of cold-related CVD mortality were observed for 10-15 days. The meta-analysis showed that a 1 • C increase above the city-specific heat threshold was associated with average overall CVD mortality increases of 4.6% (3.0%-6.2%), 6.4% (3.4%-9.4%), and 0.2% (−4.8%-5.2%) for all ages, ≥65 years, and <65 years over a lag period of 0-2 days, respectively. Similarly, a 1 • C decrease below the city-specific cold threshold was associated with average overall CVD mortality increases of 4.2% (3.0%-5.4%), 4.9% (3.5%-6.3%), and 3.1% (1.7%-4.5%), for all ages, ≥65 years, and <65 years over a lag period of 0-15 days, respectively. This work will help to take appropriate measures to reduce temperature-mortality risk in different populations in the subtropical and tropical climates of China.

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Section: Discussionsupporting

confidence: 92%

Temperature and Cardiovascular Mortality Associations in Four Southern Chinese Cities: A Time-Series Study Using a Distributed Lag Non-Linear Model

Huang

Tan²,

2017

Sustainability

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“…This definition has been used in a previous study. 28 As a result, a cold spell was indentified between January 25 to February 9, 2008 in Guangzhou. We calculated the relative risks (RRs) comparing the cold spell period (case period) with a non-cold spell period (reference period) to determine whether cold spell occurrence is associated with the incidence of measles.…”

Section: Methodsmentioning

confidence: 99%

The effects of weather conditions on measles incidence in Guangzhou, Southern China

Yang

Wang³

et al. 2014

Human Vaccines & Immunotherapeutics

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“…For example, for China, 148 279 excess deaths were attributed to an unusual cold spell in 2008, resulting in an increased mortality of 44%, with the highest effects in southern and central China (Ma et al 2013;Xie et al 2013;Zhou et al 2014). Similarly, for Italy in February 2012, an anomalous period of low temperatures resulted in a 25% increase in mortality among the 751 age group across 14 cities (de'Donato et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Exploring Winter Mortality Variability in Five Regions of England Using Back Trajectory Analysis

et al. 2016

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Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. ABSTRACT: This paper aims to define atmospheric pathways related with the occurrence of daily winter low temperature episodes (LTE) in England, for the 26-yr period 1974-99, and to reveal possible associations with increased mortality rates. For this purpose, backward airmass trajectories, corresponding to LTE in five regions of England, were deployed. A statistically significant increase in mortality levels, at the 0.05 level, was found for LTE, compared to non-LTE days across all five regions. Seven categories of atmospheric trajectory patterns associated with LTE were identified: east, local, west, North Atlantic, Arctic, southwest, and Scandinavian. Consideration of the link between airmass trajectory patterns and mortality levels by region revealed a possible west-to-east split in the nature of air masses connected with elevated mortality. Specifically, for the West Midlands and northwest regions, relatively warm winter weather conditions from the west, most likely associated with the eastward progression of low pressure systems, are allied with the highest daily average mortality counts, whereas, for the northeast, Humberside/York, and southeast regions, cold continental air advection from northern or eastern Europe, which lasts for several days and is linked with either a blocking pattern over the western margins of Europe or an intense high pressure anomaly over eastern or northern Europe, appears important in mortality terms. This finding confirms that winter weather health associations are complex, such that climate setting and airmass climatology need to be taken into account when considering climate and health relationships.

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Short-Term Effects of the 2008 Cold Spell on Mortality in Three Subtropical Cities in Guangdong Province, China

Cited by 112 publications

References 47 publications

Temperature and Cardiovascular Mortality Associations in Four Southern Chinese Cities: A Time-Series Study Using a Distributed Lag Non-Linear Model

Temperature and Cardiovascular Mortality Associations in Four Southern Chinese Cities: A Time-Series Study Using a Distributed Lag Non-Linear Model

The effects of weather conditions on measles incidence in Guangzhou, Southern China

Exploring Winter Mortality Variability in Five Regions of England Using Back Trajectory Analysis

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