Impacts of exposure to ambient temperature and altitude on the burden of stroke

Objective To evaluate the impact of ambient temperature and altitude exposure on the burden of stroke in a Chinese cohort. Methods This study was conducted using data from the National Stroke High-Risk Population Screening System 2020, which assess the overall prevalence, incidence, and mortality ra...

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Bibliographic Details
Published in:Journal of neurology 2023-09, Vol.270 (9), p.4214-4218
Main Authors: Tu, Wen-Jun, Xu, Yicheng, Fan, Yangyi, Zeng, Xianwei, Zhao, Jizong
Format: Article
Language:English
Subjects:
Adult
Altitude
Body mass index
China - epidemiology
Cities
Cold Temperature
Diurnal
Humans
Medicine
Medicine & Public Health
Mortality
Neurology
Neuroradiology
Neurosciences
Original Communication
Public health
Stroke - epidemiology
Temperature
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Summary:Objective To evaluate the impact of ambient temperature and altitude exposure on the burden of stroke in a Chinese cohort. Methods This study was conducted using data from the National Stroke High-Risk Population Screening System 2020, which assess the overall prevalence, incidence, and mortality rate of stroke in China. For this study, we obtained the annual mean ambient temperature, diurnal temperature range, and altitude for each city. Body mass index (BMI) of participants were calculated. Result The sample comprised 676,394 adults aged 40 years or older from 170 cities in 31 provinces in China. A negative linear relationship between mean ambient temperature and stroke risk (incidence and prevalence) as well as a negative association between mean ambient temperature and stroke mortality had been found. A nonlinear relationship with decreased risk in both high and low diurnal temperature range is observed for stroke burden (incidence, prevalence, and mortality). There is no significant correlation between city altitude and stroke burden. The U-shaped relationships of BMI with the incidence and prevalence of stroke indicate that the lowest incidence and prevalence are observed when BMI is approximately 20. Conclusion Overall, our study provides important insights into the environmental and individual factors that contribute to the burden of stroke in China, and may inform public health interventions aimed at reducing this burden.
ISSN:0340-5354
1432-1459
DOI:10.1007/s00415-023-11742-x