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Extreme hot weather mortality

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https://www.readbyqxmd.com/read/29154047/association-of-diurnal-temperature-range-with-daily-mortality-in-england-and-wales-a-nationwide-time-series-study
#1
Yunquan Zhang, Minjin Peng, Lu Wang, Chuanhua Yu
BACKGROUND: Diurnal temperature range (DTR) reflects within-day temperature variability and is closely associated with climate change. In comparison to temperature extremes, up-to-date DTR-health evidence at the regional and national scales has been still very limited worldwide, especially in Europe. OBJECTIVES: This study aimed to provide nationwide estimates for DTR-associated effects on mortality, and explore whether season and regional-level characteristics modify DTR-mortality relation in United Kingdom...
November 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29153471/comparison-of-built-environment-adaptations-to-heat-exposure-and-mortality-during-hot-weather-west-midlands-region-uk
#2
Jonathon Taylor, Paul Wilkinson, Roberto Picetti, Phil Symonds, Clare Heaviside, Helen L Macintyre, Michael Davies, Anna Mavrogianni, Emma Hutchinson
There is growing recognition of the need to improve protection against the adverse health effects of hot weather in the context of climate change. We quantify the impact of the Urban Heat Island (UHI) and selected adaptation measures made to dwellings on temperature exposure and mortality in the West Midlands region of the UK. We used 1) building physics models to assess indoor temperatures, initially in the existing housing stock and then following adaptation measures (energy efficiency building fabric upgrades and/or window shutters), of representative dwelling archetypes using data from the English Housing Survey (EHS), and 2) modelled UHI effect on outdoor temperatures...
November 16, 2017: Environment International
https://www.readbyqxmd.com/read/29143880/effects-of-heat-waves-on-daily-excess-mortality-in-14-korean-cities-during-the-past-20%C3%A2-years-1991-2010-an-application-of-the-spatial-synoptic-classification-approach
#3
Dae-Geun Lee, Kyu Rang Kim, Jiyoung Kim, Baek-Jo Kim, Chun-Ho Cho, Scott C Sheridan, Laurence S Kalkstein, Ho Kim, Seung-Muk Yi
The aims of this study are to explore the "offensive" summer weather types classified under the spatial synoptic classification (SSC) system and to evaluate their impacts on excess mortality in 14 Korean cities. All-cause deaths per day for the entire population were examined over the summer months (May-September) of 1991-2010. Daily deaths were standardized to account for long-term trends of subcycles (annual, seasonal, and weekly) at the mid-latitudes. In addition, a mortality prediction model was constructed through multiple stepwise regression to develop a heat-health warning system based on synoptic climatology...
November 16, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/29121092/relationship-between-fine-particulate-matter-weather-condition-and-daily-non-accidental-mortality-in-shanghai-china-a-bayesian-approach
#4
Xin Fang, Bo Fang, Chunfang Wang, Tian Xia, Matteo Bottai, Fang Fang, Yang Cao
There are concerns that the reported association of ambient fine particulate matter (PM2.5) with mortality might be a mixture of PM2.5 and weather conditions. We evaluated the effects of extreme weather conditions and weather types on mortality as well as their interactions with PM2.5 concentrations in a time series study. Daily non-accidental deaths, individual demographic information, daily average PM2.5 concentrations and meteorological data between 2012 and 2014 were obtained from Shanghai, China. Days with extreme weather conditions were identified...
2017: PloS One
https://www.readbyqxmd.com/read/28934628/the-heat-exposure-integrated-deprivation-index-heidi-a-data-driven-approach-to-quantifying-neighborhood-risk-during-extreme-hot-weather
#5
Nikolas Krstic, Weiran Yuchi, Hung Chak Ho, Blake B Walker, Anders J Knudby, Sarah B Henderson
Mortality attributable to extreme hot weather is a growing concern in many urban environments, and spatial heat vulnerability indexes are often used to identify areas at relatively higher and lower risk. Three indexes were developed for greater Vancouver, Canada using a pool of 20 potentially predictive variables categorized to reflect social vulnerability, population density, temperature exposure, and urban form. One variable was chosen from each category: an existing deprivation index, senior population density, apparent temperature, and road density, respectively...
December 2017: Environment International
https://www.readbyqxmd.com/read/28735445/characterizing-prolonged-heat-effects-on-mortality-in-a-sub-tropical-high-density-city-hong-kong
#6
Hung Chak Ho, Kevin Ka-Lun Lau, Chao Ren, Edward Ng
Extreme hot weather events are likely to increase under future climate change, and it is exacerbated in urban areas due to the complex urban settings. It causes excess mortality due to prolonged exposure to such extreme heat. However, there is lack of universal definition of prolonged heat or heat wave, which leads to inadequacies of associated risk preparedness. Previous studies focused on estimating temperature-mortality relationship based on temperature thresholds for assessing heat-related health risks but only several studies investigated the association between types of prolonged heat and excess mortality...
November 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28591871/-relevance-of-heat-health-actions-plans-for-preventive-public-health-in-germany
#7
Birgit Zielo, Andreas Matzarakis
Background Heat waves are among the extreme weather events and represent a growing health hazard for the population in Europe. According to the current climate studies, the probability of an increase and intensification of heat waves has been increasing for years. Particularly affected by exposure to unusually high heat are people whose organism is already weakened by age or illness. As the share of senior citizens in Germany continues to rise as a result of demographic change, the health effects of heat waves are gaining in importance...
June 7, 2017: Das Gesundheitswesen
https://www.readbyqxmd.com/read/28399306/effect-of-temperature-thresholds-on-modeled-aedes-aegypti-diptera-culicidae-population-dynamics
#8
Heidi E Brown, Roberto Barrera, Andrew C Comrie, Joceline Lega
Dynamic simulation models provide vector abundance estimates using only meteorological data. However, model outcomes may heavily depend on the assumptions used to parameterize them. We conducted a sensitivity analysis for a model of Aedes aegypti (L.) abundance using weather data from two locations where this vector is established, La Margarita, Puerto Rico and Tucson, Arizona. We tested the effect of simplifying temperature-dependent development and mortality rates and of changing development and mortality thresholds as compared with baselines estimated using biophysical models...
July 1, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28329929/-influence-of-extreme-weather-on-years-of-life-lost-due-to-diabetes-death-in-chongqing-and-harbin-china
#9
Y H Li, S Q Luo, L Lan, M G Jin, C Yang, J Y He, H B Li, C C Li, Y B Cheng, Y L Jin
Objective: To understand the associations between extremely low and high air temperature and the years of life lost (YLL) due to diabetes deaths in Chongqing and Harbin with different climatic characteristics in China. Methods: A double threshold B-spline distributed lag non-linear model (DLNM) was used to investigate the lag and cumulative effects of extremely low and high air temperature on YLL due to diabetes for lag 0-30 days by using the urban meteorological and diabetes mortality data of Chongqing (2011-2013) and Harbin (2008-2010)...
March 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/27846897/a-proposed-case-control-framework-to-probabilistically-classify-individual-deaths-as-expected-or-excess-during-extreme-hot-weather-events
#10
Sarah B Henderson, Jillian S Gauld, Stephen A Rauch, Kathleen E McLean, Nikolas Krstic, David M Hondula, Tom Kosatsky
BACKGROUND: Most excess deaths that occur during extreme hot weather events do not have natural heat recorded as an underlying or contributing cause. This study aims to identify the specific individuals who died because of hot weather using only secondary data. A novel approach was developed in which the expected number of deaths was repeatedly sampled from all deaths that occurred during a hot weather event, and compared with deaths during a control period. The deaths were compared with respect to five factors known to be associated with hot weather mortality...
November 15, 2016: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/27346526/delineation-of-spatial-variability-in-the-temperature-mortality-relationship-on-extremely-hot-days-in-greater-vancouver-canada
#11
Hung Chak Ho, Anders Knudby, Blake Byron Walker, Sarah B Henderson
BACKGROUND: Climate change has increased the frequency and intensity of extremely hot weather. The health risks associated with extemely hot weather are not uniform across affected areas owing to variability in heat exposure and social vulnerability, but these differences are challenging to map with precision. OBJECTIVES: We developed a spatially and temporally stratified case-crossover approach for delineation of areas with higher and lower risks of mortality on extremely hot days and applied this approach in greater Vancouver, Canada...
January 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/27044873/the-ability-of-white-leghorn-hens-with-trimmed-comb-and-wattles-to-thermoregulate
#12
D S Al-Ramamneh, M M Makagon, P Y Hester
It is estimated that each year over 19 million pullets in the United States have their combs partially trimmed at a young age to improve egg production and feed efficiency. A possible disadvantage of trimming is that the comb and wattles may be essential for thermoregulation during hot weather allowing for conductive cooling of the blood through vasodilation of superficial vessels in these integumentary tissues. The objective of this study was to investigate the effects of partial comb and wattle removal, performed at 21 d of age, on the ability of White Leghorns to thermoregulate before, during, and after an imposed heating episode that averaged 34...
August 1, 2016: Poultry Science
https://www.readbyqxmd.com/read/26005951/quantifying-the-influence-of-ambient-temperature-on-dairy-and-beef-cattle-mortality-in-france-from-a-time-series-analysis
#13
Eric Morignat, Emilie Gay, Jean-Luc Vinard, Didier Calavas, Viviane Hénaux
In the context of climate change, the frequency and severity of extreme weather events are expected to increase in temperate regions, and potentially have a severe impact on farmed cattle through production losses or deaths. In this study, we used distributed lag non-linear models to describe and quantify the relationship between a temperature-humidity index (THI) and cattle mortality in 12 areas in France. THI incorporates the effects of both temperature and relative humidity and was already used to quantify the degree of heat stress on dairy cattle because it does reflect physical stress deriving from extreme conditions better than air temperature alone...
July 2015: Environmental Research
https://www.readbyqxmd.com/read/26003380/mortality-risk-attributable-to-high-and-low-ambient-temperature-a-multicountry-observational-study
#14
MULTICENTER STUDY
Antonio Gasparrini, Yuming Guo, Masahiro Hashizume, Eric Lavigne, Antonella Zanobetti, Joel Schwartz, Aurelio Tobias, Shilu Tong, Joacim Rocklöv, Bertil Forsberg, Michela Leone, Manuela De Sario, Michelle L Bell, Yue-Liang Leon Guo, Chang-fu Wu, Haidong Kan, Seung-Muk Yi, Micheline de Sousa Zanotti Stagliorio Coelho, Paulo Hilario Nascimento Saldiva, Yasushi Honda, Ho Kim, Ben Armstrong
BACKGROUND: Although studies have provided estimates of premature deaths attributable to either heat or cold in selected countries, none has so far offered a systematic assessment across the whole temperature range in populations exposed to different climates. We aimed to quantify the total mortality burden attributable to non-optimum ambient temperature, and the relative contributions from heat and cold and from moderate and extreme temperatures. METHODS: We collected data for 384 locations in Australia, Brazil, Canada, China, Italy, Japan, South Korea, Spain, Sweden, Taiwan, Thailand, UK, and USA...
July 25, 2015: Lancet
https://www.readbyqxmd.com/read/25748025/ambient-heat-and-sudden-infant-death-a-case-crossover-study-spanning-30-years-in-montreal-canada
#15
Nathalie Auger, William D Fraser, Audrey Smargiassi, Tom Kosatsky
BACKGROUND: Climate change may lead to more severe and extreme heat waves in the future, but its potential impact on sudden infant death-a leading cause of infant mortality-is unclear. OBJECTIVES: We sought to determine whether risk of sudden infant death syndrome (SIDS) is elevated during hot weather. METHODS: We undertook a case-crossover analysis of all sudden infant deaths during warm periods in metropolitan Montreal, Quebec, Canada, from 1981 through 2010...
July 2015: Environmental Health Perspectives
https://www.readbyqxmd.com/read/25643105/mortality-related-to-extreme-temperature-for-15-cities-in-northeast-asia
#16
Yeonseung Chung, Youn-Hee Lim, Yasushi Honda, Yue-Liang Leon Guo, Masahiro Hashizume, Michelle L Bell, Bing-Yu Chen, Ho Kim
BACKGROUND: Multisite time-series studies for temperature-related mortality have been conducted mainly in the United States and Europe, but are lacking in Asia. This multisite time-series study examined mortality related to extreme temperatures (both cold and hot) in Northeast Asia, focusing on 15 cities of 3 high-income countries. METHODS: This study includes 3 cities in Taiwan for 1994-2007, 6 cities in Korea for 1992-2010, and 6 cities in Japan for 1972-2009...
March 2015: Epidemiology
https://www.readbyqxmd.com/read/25511886/the-effect-of-temperature-on-cardiovascular-disease-hospital-admissions-among-elderly-people-in-thai-nguyen-province-vietnam
#17
Pham Ngan Giang, Do Van Dung, Kim Bao Giang, Hac Van Vinhc, Joacim Rocklöv
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...
2014: Global Health Action
https://www.readbyqxmd.com/read/25174472/-impact-of-temperature-on-non-accidental-deaths-and-cause-specific-mortality-in-four-districts-of-jinan
#18
Mengmeng Li, Maigeng Zhou, Xia Zhang, Jixia Huang, Li Bai, Shaowei Sang, Ji Zhang, Qiyong Liu
OBJECTIVE: To study the relationship between daily temperature and non-accidental deaths in four districts of Jinan, and to investigate the impact of temperature on cause-specific mortality. METHODS: Data on daily mortality of the four districts (Shizhong, Huaiyin, Tianqiao, Lixia) as well as data related to meteorology and air pollution index were collected from January 1, 2008 to December 31, 2012. Distributed lag non-linear model (DLNM) was then used to assess the effects of temperature on all non-accidental deaths and deaths caused by cardiovascular diseases (CVD), respiratory diseases (RD), digestive diseases, urinary diseases, and also subcategories to hypertension, ischemic heart diseases (IHD), acute myocardial infarction (AMI), cerebro-vascular diseases (CBD) and chronic lower respiratory diseases...
June 2014: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/25086705/extremely-cold-and-hot-temperatures-increase-the-risk-of-diabetes-mortality-in-metropolitan-areas-of-two-chinese-cities
#19
Yonghong Li, Li Lan, Yulin Wang, Chao Yang, Wenge Tang, Guoquan Cui, Shuquan Luo, Yibin Cheng, Yingchun Liu, Jingyi Liu, Yinlong Jin
BACKGROUND: Numerous studies have reported the association between ambient temperature and mortality. However, few studies have focused on the effects of extreme temperatures on diabetes mortality, particularly in China. The objective of the present study was to assess the effects of extremely cold and hot temperatures on diabetes mortality in urban areas of Harbin and Chongqing in China to provide scientific evidence for public health policy implementation to respond to challenges in diabetes mortality because of extreme temperature events...
October 2014: Environmental Research
https://www.readbyqxmd.com/read/24981822/the-effect-of-pre-existing-medical-conditions-on-heat-stroke-during-hot-weather-in-south-korea
#20
Si-Heon Kim, Soo-Nam Jo, Hyung-Nam Myung, Jae-Yeon Jang
BACKGROUND: Heat stroke contributes considerably to morbidity and mortality in hot weather, but it is unclear whether pre-existing medical conditions increase the risk of heat stroke. The purpose of this study was to assess the association between heat stroke and pre-existing medical conditions in South Korea. METHODS: A case-control study was conducted using data from a nationwide surveillance system for heat illnesses in 2012. Individuals with heat stroke were identified and compared to control subjects with mild heat illness such as heat exhaustion, heat edema, heat cramps, and heat syncope...
August 2014: Environmental Research
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