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Background And Objectives: Stroke attributable to nonoptimal temperature needs more attention with dramatic climate change. The aim of this study was to estimate the global burden and distribution characteristics of the burden.
Methods: In this ecological study, we collected data from the Climate Research Unit Gridded Time Series, the World Bank databases, and the Global Burden of Diseases study to estimate the distribution of burden. We used the joinpoint model, decomposition analysis, age-period-cohort model, panel data analysis, and health inequality analysis to assess the different types of stroke burden attributable to different climatic conditions.
Results: The burden of stroke attributable to nonoptimal temperature continued to grow, and aging was a key factor in this increase. In 2019, 521,031 (95% uncertainty interval [UI] 402,433-663,996) deaths and 9,423,649 (95% UI 7,207,660-12,055,172) disability-adjusted life years [DALYs] attributable to stroke due to nonoptimal temperature were recorded globally. Globally, men (age-standardized mortality rate [ASMR] 7.70, 95% UI 5.80-9.73; age-standardized DALY rate [ASDR] 139.69, 95% UI 102.96-178.54 in 2019) had a heavier burden than women (ASMR 5.89, 95% UI 4.50-7.60; ASDR 96.02, 95% UI 72.62-123.85 in 2019). Central Asia (ASMR 18.12, 95% UI 13.40-24.53; ASDR 327.35, 95% UI 240.24-440.61 in 2019) had the heaviest burden at the regional level. In the national level, North Macedonia (ASMR 32.97, 95% UI 20.57-47.44 in 2019) and Mongolia (ASDR 568.54, 95% UI 242.03-1,031.14 in 2019) had the highest ASMR/ASDR, respectively. Low temperature currently contributes to the main burden (deaths 474,002, 95% UI 355,077-606,537; DALYs 8,357,198, 95% UI 6,186,217-10,801,911 attributable to low temperature vs deaths 48,030, 95% UI 5,630-104,370; DALYs 1,089,329, 95% UI 112,690-2,375,345 attributable to high temperature in 2019). However, the burden due to high temperature has increased rapidly, especially among people aged older than 10 years, and was disproportionately concentrated in low sociodemographic index (SDI) regions such as Africa. In addition, the rapid increase in the stroke burden due to high temperature in Central Asia also requires special attention.
Discussion: This is the first study to assess the global stroke burden attributed to nonoptimal temperature. The dramatic increase in the burden due to high temperature requires special attention, especially in low-SDI countries.
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http://dx.doi.org/10.1212/WNL.0000000000209299 | DOI Listing |
Environ Res
September 2025
School of Public Health, Sun Yat-sen University, Guangzhou 510080, China. Electronic address:
Climate change has heightened awareness of the health impacts of non-optimal temperatures (cold and heat), including the effect of gestational exposure and birth outcomes. However, temperature exposure assessment remains methodologically challenging due to unaccounted individual spatiotemporal mobility and adaptive behaviors, a gap that has not been adequately addressed in published studies. Using data from a prospective birth cohort in Guangzhou, China, conducted from 2017 to 2020, we assessed and compared three different exposure measures: home-based exposure, derived solely from ambient temperature data at residential locations; mobility-based exposure, incorporating individuals' spatiotemporal activities to capture dynamic environmental conditions; and AC & mobility-based exposure, an extension of the mobility-based approach that further integrates data on air-conditioning usage.
View Article and Find Full Text PDFBMC Public Health
September 2025
National Geomatics Center of China, Beijing, 100830, China.
Background: Non-optimal ambient temperatures have been demonstrated to negatively affect a variety of health outcomes, particularly population mortality. However, the mortality risk of older adults between rural and urban areas exposure to temperature variations remain unclear.
Methods: Here, leveraging the panel data for 27,193 older adults from the largest and most complete Chinese Longitudinal Healthy Longevity Survey during 2005-2018, we explored the impacts of temperature variations like low/high and extreme temperatures on mortality risk of older adults in China.
Environ Res
August 2025
Department of Echocardiography, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Disease, Shanghai Institute of Medical Imaging, Fenglin Road 180, Xuhui District, Shanghai 200032, China. Electronic address:
Aims: The impact of ambient temperature on cardiac structure and function is not well understood.
Objective: We aim to investigate the relationship between short-term exposure to non-optimal ambient temperature and cardiac structure and function.
Methods And Results: We designed a longitudinal repeated-measure study in Shanghai, China from 2014-2020 among 127,317 participants who underwent at least two echocardiogram tests.
Ecotoxicol Environ Saf
August 2025
The National Center for Chronic and Noncommunicable Disease Control and Prevention, Beijing 100050, China. Electronic address:
Ambient temperature is linked to an increased risk of lower respiratory infections (LRI) yet the evidence on the population and spatial heterogeneity of LRI mortality burden attributed to non-optimal temperatures and its socioeconomic drivers remain limited. Based on 1249,452 LRI deaths and related meteorological data collected from 2820 counties/districts during 2013-2022 in China, we conducted a time-stratified case-crossover analysis using distributed lag nonlinear model (DLNM) to examine the spatial and population heterogeneity of the association between temperature and LRI mortality. Additionally, we explored the driving factors of the spatial heterogeneity using eXtreme Gradient Boosting (XGBoost) and SHapley Additive exPlanation (SHAP) methods.
View Article and Find Full Text PDFPhysiol Plant
August 2025
Laboratory of Crop Science, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi, Japan.
Elevated CO (eCO) can enhance plant growth, but it may also accelerate senescence, which could offset the growth benefits. Phosphorus (P) supply can enhance the photosynthetic rate under eCO conditions and promote biomass accumulation. To explore the mechanisms behind eCO-induced senescence and the potential mitigation through P supply, pot experiments were conducted under low and high P conditions during spring and autumn.
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