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Zhai G, Qi J, Chai G, Zhou W, Wang J. Effects of large temperature change lasting for several days on cardiovascular disease hospital admissions among farmers in China's Western villages. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2024; 34:443-454. [PMID: 36469800 DOI: 10.1080/09603123.2022.2153807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 11/27/2022] [Indexed: 06/17/2023]
Abstract
Global climate change has resulted in an increase in the frequency, intensity, and duration of extreme events. However, we know very little about the associations between large temperature changes lasting for several days (LTCD) and CVD, particularly in less-developed, rural areas. We collected daily data on cardiovascular-related diseases and weather conditions from 119 villages in seven counties between 2010 and 2016. A distributed lag non-linear model was used to investigate the association between LTCD and relative risk (RR) of hospital admissions for CVD. Analyses were stratified by the duration and intensity of LTCD, age, and sex. The RR of CVD increases with the intensity and duration of LTCD. Men and young people were more vulnerable to LTCD of longer duration and higher intensity than women and old. Our findings may help local public health authorities develop adaptive preventive strategies targeting inhabitants of villages.
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Affiliation(s)
- Guangyu Zhai
- School of Economics and Management, Lanzhou University of Technology, Lanzhou, China
| | - Jintao Qi
- School of Economics and Management, Lanzhou University of Technology, Lanzhou, China
| | - Guorong Chai
- School of Management, Lanzhou University, Lanzhou, China
| | - Wenjuan Zhou
- Network Center, Gansu Provincial Hospital, Lanzhou, China
| | - Jiancheng Wang
- Network Center, Gansu Provincial Hospital, Lanzhou, China
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Jibhakate SM, Gehlot LK, Timbadiya PV, Patel PL. Spatiotemporal variability of extreme temperature indices and their implications over the heterogeneous river basin, India. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:664. [PMID: 37171502 DOI: 10.1007/s10661-023-11196-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 04/01/2023] [Indexed: 05/13/2023]
Abstract
The current study on spatiotemporal variability of temperature presents a holistic approach for quantifying the joint space-time variability of extreme temperature indices over the physio-climatically heterogeneous Tapi River basin (TRB) using two unsupervised machine learning algorithms, i.e., principal component analysis (PCA) and cluster analysis. The long-term variability in extreme temperature indices, recommended by the Expert Team on Climate Change Detection and Indices (ETCCDI), was evaluated for 1951-2016. The magnitude and statistical significance of the temporal trend in extreme temperature indices were estimated using non-parametric Sen's slope estimator and modified Mann Kendall (MMK) tests, respectively. The multivariate assessment of temporal trends using PCA resulted in four principal components (PCs) encapsulating more than 90% variability. The cluster analysis of corresponding PCs resulted in two spatial clusters exhibiting homogeneous spatiotemporal variability. Cluster 1 is characterized by significantly increasing hottest, very hot, and extremely hot days with rising average maximum temperature and intraday temperature variability. On the other hand, cluster 2 showed significantly rising coldest nights, mean minimum, mean temperature, and Tx37 with significantly decreasing intraday and interannual temperature variability, very cold, and extremely cold nights with reducing cold spell durations. The summertime heat stress computation revealed that the Purna sub-catchment of the Tapi basin is more vulnerable to various health issues and decreased work performance (> 10%) for more than 45 days per year. The current study dealing with the associated effects of rising temperature variability on crop yield, human health, and work performance would help policymakers formulate better planning and management strategies to safeguard society and the environment.
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Affiliation(s)
- Shubham M Jibhakate
- Department of Civil Engineering, Sardar Vallabhbhai National Institute of Technology Surat, Surat, Gujarat, 395007, India
| | - Lalit Kumar Gehlot
- Department of Civil Engineering, Sardar Vallabhbhai National Institute of Technology Surat, Surat, Gujarat, 395007, India
| | - P V Timbadiya
- Department of Civil Engineering, Sardar Vallabhbhai National Institute of Technology Surat, Surat, Gujarat, 395007, India.
| | - P L Patel
- Department of Civil Engineering, Sardar Vallabhbhai National Institute of Technology Surat, Surat, Gujarat, 395007, India
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Psistaki K, Dokas IM, Paschalidou AK. Analysis of the heat- and cold-related cardiovascular mortality in an urban mediterranean environment through various thermal indices. ENVIRONMENTAL RESEARCH 2023; 216:114831. [PMID: 36402186 DOI: 10.1016/j.envres.2022.114831] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 10/31/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
During the last decades the effects of thermal stress on public health have been a great concern worldwide. Thermal stress is determined by air temperature in combination with other meteorological parameters, such as relative humidity and wind speed. The present study is focused on the Mediterranean city of Thessaloniki, Greece and it aims to explore the association between thermal stress and mortality from cardiovascular diseases, using both air temperature and other thermal indices as indicators. For that, an over-dispersed Poisson regression function was used, in combination with distributed lag non-linear models, in order to capture the delayed and nonlinear effects of temperature. Our results revealed a reverse J-shaped exposure-response curve for the total population and females and a U-shaped association for males. In all cases examined, the minimum mortality temperature was identified around the 80th percentile of each distribution. It is noteworthy that despite the fact that the highest risks of cardiovascular mortality were estimated for exposure to extreme temperatures, moderate temperatures were found to cause the highest burden of mortality. On the whole, our estimations demonstrated that the population in Thessaloniki is more susceptible to cold effects and in regard with gender, females seem to be more vulnerable to ambient thermal conditions.
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Affiliation(s)
- K Psistaki
- Department of Forestry and Management of the Environment and Natural Resources, Democritus University of Thrace, Orestiada, 68200, Greece
| | - I M Dokas
- Department of Civil Engineering, Democritus University of Thrace, Greece
| | - A K Paschalidou
- Department of Forestry and Management of the Environment and Natural Resources, Democritus University of Thrace, Orestiada, 68200, Greece.
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Wang H, Ma Y, Cheng B, Li H, Feng F, Zhang C, Zhang Y. Health effect of temperature change on respiratory diseases in opposite phase in semi-arid region. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:12953-12964. [PMID: 36117224 DOI: 10.1007/s11356-022-23056-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 09/13/2022] [Indexed: 06/15/2023]
Abstract
The impact of temperature variation on health has attracted increasing attention under global climate change. A distributed lag non-linear model (DLNM) was performed to estimate the risk of two indicators of temperature change (diurnal temperature range (DTR) and temperature change between neighboring days (TCN)) on respiratory hospital visits in Lanzhou, a semi-arid climate city in western China from 2012 to 2018. The whole year is divided into two different temperature change periods according to the TCN of each solar term. The results showed that extreme high DTR can apparently enlarge respiratory risk, and it indicated strong cumulative relative risk (RR) in the temperature drop period. Extreme low TCN had strong adverse effects on respiratory diseases especially in temperature rise period, with the greatest RR of 1.068 (95% CI 1.004, 1.136). The effect of extreme high TCN was more obvious in temperature drop period, with a RR of 1.082 (95% CI 1.021, 1.148) at lag 7. Females were more affected by extreme temperature changes. Young people were more vulnerable to DTR, while TCN has a greater impact on the elderly.
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Affiliation(s)
- Hang Wang
- College of Atmospheric Sciences, Key Laboratory of Semi-Arid Climate Change, Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Yuxia Ma
- College of Atmospheric Sciences, Key Laboratory of Semi-Arid Climate Change, Ministry of Education, Lanzhou University, Lanzhou, 730000, China.
| | - Bowen Cheng
- College of Atmospheric Sciences, Key Laboratory of Semi-Arid Climate Change, Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Heping Li
- College of Atmospheric Sciences, Key Laboratory of Semi-Arid Climate Change, Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Fengliu Feng
- College of Atmospheric Sciences, Key Laboratory of Semi-Arid Climate Change, Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Caixia Zhang
- Dingxi First People's Hospital, Dingxi, 743000, China
| | - Yifan Zhang
- College of Atmospheric Sciences, Key Laboratory of Semi-Arid Climate Change, Ministry of Education, Lanzhou University, Lanzhou, 730000, China
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Psistaki K, Dokas IM, Paschalidou AK. The Impact of Ambient Temperature on Cardiorespiratory Mortality in Northern Greece. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 20:555. [PMID: 36612877 PMCID: PMC9819162 DOI: 10.3390/ijerph20010555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 12/22/2022] [Accepted: 12/23/2022] [Indexed: 06/17/2023]
Abstract
It is well-established that exposure to non-optimum temperatures adversely affects public health, with the negative impact varying with latitude, as well as various climatic and population characteristics. This work aims to assess the relationship between ambient temperature and mortality from cardiorespiratory diseases in Eastern Macedonia and Thrace, in Northern Greece. For this, a standard time-series over-dispersed Poisson regression was fit, along with a distributed lag nonlinear model (DLNM), using a maximum lag of 21 days, to capture the non-linear and delayed temperature-related effects. A U-shaped relationship was found between temperature and cardiorespiratory mortality for the overall population and various subgroups and the minimum mortality temperature was observed around the 65th percentile of the temperature distribution. Exposure to extremely high temperatures was found to put the highest risk of cardiorespiratory mortality in all cases, except for females which were found to be more sensitive to extreme cold. It is remarkable that the highest burden of temperature-related mortality was attributed to moderate temperatures and primarily to moderate cold. The elderly were found to be particularly susceptible to both cold and hot thermal stress. These results provide new evidence on the health response of the population to low and high temperatures and could be useful to local authorities and policy-makers for developing interventions and prevention strategies for reducing the adverse impact of ambient temperature.
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Affiliation(s)
- Kyriaki Psistaki
- Department of Forestry and Management of the Environment and Natural Resources, Democritus University of Thrace, 68200 Orestiada, Greece
| | - Ioannis M. Dokas
- Department of Civil Engineering, Democritus University of Thrace, 67100 Xanthi, Greece
| | - Anastasia K. Paschalidou
- Department of Forestry and Management of the Environment and Natural Resources, Democritus University of Thrace, 68200 Orestiada, Greece
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Zhang W, Du G, Xiong L, Liu T, Zheng Z, Yuan Q, Yang J, Wu Y, Zhu R, Hu G. Extreme temperatures and cardiovascular mortality: assessing effect modification by subgroups in Ganzhou, China. Glob Health Action 2021; 14:1965305. [PMID: 34482804 PMCID: PMC8425637 DOI: 10.1080/16549716.2021.1965305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background Many people die from cardiovascular diseases each year, and extreme temperatures are regarded as a risk factor for cardiovascular deaths. However, the relationship between temperature and cardiovascular deaths varies in different regions because of population density, demographic inequality, and economic situation, and the evidence in Ganzhou, China is limited and inconclusive. Objective This study aimed to assess extreme temperature-related cardiovascular mortality and identify the potential vulnerable people. Methods After controlling other meteorological measures, air pollution, seasonality, relative humidity, day of the week, and public holidays, we examined temperature-related cardiovascular mortality along 21 lag days by Poisson in Ganzhou, China. Results A J-shaped relationship was observed between mean temperature and cardiovascular mortality. Extremely low temperatures substantially increased the relative risks (RR) of cardiovascular mortality. The effect of cold temperature was delayed by 2–6 days and persisted for 4–10 days. However, the risk of cardiovascular mortality related to extremely high temperatures was not significant (p > 0.05). Subgroup analysis indicated that extremely low temperatures had a stronger association with cardiovascular mortality in people with cerebrovascular diseases (RR: 1.282, 95% confidence interval [CI]: 1.020–1.611), males (RR: 1.492, 95% CI: 1.175–1.896), married people (RR: 1.590, 95% CI: 1.224–2.064), and people above the age of 65 years (RR: 1.641, 95% CI: 1.106–2.434) than in people with ischemic heart disease, females, unmarried people, and the elderly (≥65 years old), respectively. Conclusions The type of cardiovascular disease, sex, age, and marital status modified the effects of extremely low temperatures on the risk of cardiovascular mortality. These findings may help local governments to establish warning systems and precautionary measures to reduce temperature-related cardiovascular mortality.
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Affiliation(s)
- Wei Zhang
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou, China.,Department of Occupational Health and Occupational Medicine, School of Public Health and Health Management, Gannan Medical University, Ganzhou, Jiangxi, China
| | - Gang Du
- Ganzhou Center For Disease Control And Prevention, Ganzhou, Jiangxi, China
| | - Liang Xiong
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou, China.,Department of Occupational Health and Occupational Medicine, School of Public Health and Health Management, Gannan Medical University, Ganzhou, Jiangxi, China
| | - Tingting Liu
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou, China.,Department of Occupational Health and Occupational Medicine, School of Public Health and Health Management, Gannan Medical University, Ganzhou, Jiangxi, China
| | - Zuobing Zheng
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou, China.,Department of Occupational Health and Occupational Medicine, School of Public Health and Health Management, Gannan Medical University, Ganzhou, Jiangxi, China
| | - Qiong Yuan
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou, China.,Department of Occupational Health and Occupational Medicine, School of Public Health and Health Management, Gannan Medical University, Ganzhou, Jiangxi, China
| | - Jiahui Yang
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou, China.,Department of Occupational Health and Occupational Medicine, School of Public Health and Health Management, Gannan Medical University, Ganzhou, Jiangxi, China
| | - Yangna Wu
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou, China.,Department of Occupational Health and Occupational Medicine, School of Public Health and Health Management, Gannan Medical University, Ganzhou, Jiangxi, China
| | - Rongfei Zhu
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou, China.,Department of Occupational Health and Occupational Medicine, School of Public Health and Health Management, Gannan Medical University, Ganzhou, Jiangxi, China
| | - Gonghua Hu
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou, China.,Department of Occupational Health and Occupational Medicine, School of Public Health and Health Management, Gannan Medical University, Ganzhou, Jiangxi, China
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