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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.
Results: A W-shaped relationship was noticed between daily average temperature and non-accidental deaths. The effect of low temperature last for more than 30 days, much longer than that of high temperature, in which presented a harvesting effect less than 5 days. As to the cause-specific mortality, short-term heat effects were seen in CVD and RD as well as related subgroups as IHD, CBD and AMI, with RRs at lag 0 as 1.12 (95%CI:1.07-1.17), 1.06 (95% CI:1.02-1.31), 1.08 (95% CI:1.003-1.16), 1.10 (95% CI:1.02-1.20) and 1.13 (95% CI: 1.003-1.26). Relatively higher RRs were seen in urinary diseases and hypertension under extremely high temperature, reaching as high as 2.30 (95%CI:1.18-4.51) and 1.65 (95%CI:1.02-2.69). Cold weather presented a delayed effect for 30 days, with cumulative RRs as 1.51 (95%CI:1.42-1.60), 1.90 (95%CI:1.64-2.20), 2.12 (95%CI:1.67-2.69), 1.48 (95%CI:1.08-2.03), 1.60 (95%CI:1.46-1.75), 1.40 (95%CI:1.26-1.55), 1.68 (95%CI:1.45-1.95) for CVD, RD, chronic lower respiratory diseases, hypertension,IHD, CBD and AMI, on sequence.
Conclusion: A relationship was seen between daily temperature and non-accidental deaths as well as cause-specific mortality. Either high or low temperature seemed to be detrimental. Related measures on disease prevention should be taken during the cold and hot seasons.
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Ecotoxicol Environ Saf
September 2025
Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, Anhui Province, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, Hefei, Anhui Province, Chin
Background: Short-term exposure to ozone has been linked to increased mortality, but its role in temperature-health associations is still not fully understood. Beyond direct effects, ozone may influence mortality as both a factor modified by temperature and a mediator of temperature's impact.
Methods: We conducted a time-series study using quasi-Poisson generalized additive models (GAMs) to examine associations between short-term ozone exposure and cause-specific mortality in Hefei, China (2014-2022).
J Korean Med Sci
June 2025
Department of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
Background: Global warming has raised the earth's temperature approximately 1°C compared to the pre-industrial level. Particulate matter is one pathway through which climate change affects health. This study aimed to estimate the attribution of PM on mortality associated with increased temperatures in seven major Korean cities.
View Article and Find Full Text PDFEnviron Health Perspect
June 2025
Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, China.
Background: Temperature-related risks on non-accidental morbidity or mortality have been well documented. However, limited studies have investigated the injury morbidity risk and burden attributed to ambient temperature.
Objective: The current study aimed to assess the injury morbidity risk and burden attributed to ambient temperature in China.
Trop Med Health
June 2025
Department of Environmental Health Sciences, Faculty of Public Health, Mahidol University, Bangkok, Thailand.
Introduction: Diurnal temperature range (DTR), the difference between daily maximum and minimum temperatures, has been increasingly recognized for its potential impact on human health. However, its contribution to mortality remains underexplored, particularly in tropical regions such as Thailand.
Objective: To estimate the burden of all-cause mortality attributable to variations in DTR in Thailand utilizing data from 2007 to 2021.
Ecotoxicol Environ Saf
July 2025
Department of Environmental Health Sciences, Faculty of Public Health, Mahidol University, Bangkok, Thailand; Center of Excellence on Environmental Health and Toxicology (EHT), Office of the Permanent Secretary (OPS), Ministry of Higher Education, Science, Research and Innovation (MHESI), Bangkok, T
Climate change and fluctuating temperature have become significant environmental issues impacting public health. However, the association between temperature and mortality in Thailand, particularly how this relationship changes over time, remains underexplored. This study aimed to investigate the time-varying association between ambient temperature and non-accidental mortality in Thailand, using the data from 2000 to 2020.
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