Intraseasonal variation of the association between heat exposure and mortality risk in Shandong province, China

Cao, Yanwen; Lu, Zilong; Chu, Jie; Xu, Xiaohui; Zhao, Zhonghui; Geng, Mengjie; Chen, Gongbo; Hu, Kejia; Xia, Jingjing; Liu, Qiyong; Zhao, Qi; Schikowski, Tamara; Ma, Jixiang; Ma, Wei

doi:10.1016/j.uclim.2023.101621

Cited by 3 publications

(2 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The causes of death were coded using the International Classification of Diseases, 10th Revision (ICD-10), which were grouped into cardiovascular disease (I00-I99), respiratory disease (J00-J98), accidental death (S00-T98), and other nonaccidental deaths (all other encodings). We further categorized the causes of death based on our previous studies [21].…”

Section: Data Collectionmentioning

confidence: 99%

“…As one of the largest countries in the world in terms of population and land area, China shows a warming pace that is significantly higher than the global average between 1951 and 2021, making it one of the most vulnerable nations to climate change [19]. Among the provinces in China, Shandong Province is particularly threatened by climate change and extreme heat events [20,21]. The province has a large population, rapid aging trends, and a unique geographical location, which make it an ideal representative for evaluating the impacts of CHEs in China [22].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Association between Compound Hot Extremes and Mortality Risk in Shandong Province, China: A Time-Series Analysis

Xing,

Liu,

et al. 2023

Atmosphere

Self Cite

View full text Add to dashboard Cite

Background: The occurrence of compound hot extreme (CHE) events in China is increasingly frequent. This study aimed to investigate the association between CHEs and all-cause mortality in Shandong Province and to estimate the attributable excess deaths. Methods: We collected daily data on weather, air pollution, and all-cause mortality at the subdistrict level in Shandong Province from 2013 to 2018. A CHE was defined as both daily maximum and minimum temperatures being higher than their historical 90th percentiles during 2013–2018 hot seasons. A case time-series analysis with a distributed lagged non-linear model was applied to analyze the subdistrict-specific association between different hot extremes and mortality risk, which were then pooled at the province level using meta-analysis. Results: Hot nights (RR = 1.44, 95%CI: 1.35–1.53) and CHEs (RR = 1.77, 95%CI: 1.64–1.90) were significantly associated with an increased mortality risk. CHEs had a greater effect for females (RR = 1.99, 95%CI: 1.81–2.19) and the elderly (>74 years) (RR = 2.14, 95%CI: 1.93–2.38) than their counterparts, respectively. Cardiovascular and respiratory deaths were more susceptible to CHEs than other deaths. Each year, 4888 (95%CI: 4133–5811) excess deaths in Shandong Province were attributable to CHEs, accounting for 2.60% (95%CI: 2.20–3.10%) of all-cause deaths and equating to 50 (95%CI: 42–58) deaths per 1,000,000 residents. The CHE-related mortality burden varied across subdistricts, with the highest occurring in the southeastern area and the lowest occurring in the northeastern and southwestern regions. Conclusion: CHEs and hot nights were substantially associated with excess deaths in Shandong Province, especially for females, the elderly, and residents living in the southeastern area. Our findings may facilitate the development of a heat alert warning system and preventive measures for vulnerable populations.

show abstract

Section: Data Collectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Association between Compound Hot Extremes and Mortality Risk in Shandong Province, China: A Time-Series Analysis

Xing,

Liu,

et al. 2023

Atmosphere

Self Cite

View full text Add to dashboard Cite

show abstract

Spatiotemporal dynamic mapping of heat exposure risk for different populations in city based on hourly multi-source data

Zhang,

Yao,

Chen

et al. 2024

Sustainable Cities and Society

View full text Add to dashboard Cite

The association between ambient temperature and semen quality in a Northern Peninsular Province, China

Wang,

Qu,

Han

et al. 2024

Andrology

View full text Add to dashboard Cite

BackgroundExtreme ambient temperature has been linked to decline in males’ semen quality. Although the temperature–semen quality association has been examined in certain cities of South China, how the effect size of the extreme temperature may lag over critical windows in spermatogenesis and whether the strength of association may vary in North China have yet been adequately explored.ObjectivesTo quantify the association between air temperature and semen quality, and identify critical exposure windows in a Northern Peninsular Province, China.Materials and methodsData on semen quality in 2014−2019 were collected from the Human Sperm Bank of Institute of Women, Children and Reproductive Health, Shandong University, China. Daily meteorological data (0.01°×0.01°) were assigned to each subject's residential address. The linear mixed‐effect model combined with the distributed lag nonlinear model was used to estimate the effect of ambient temperature over critical spermatogenesis windows.ResultsThe temperature–semen quality association was inverted V‐shaped, with the maximum lag being 0–45 days before ejaculation and the threshold being 9.2°C. Progressively and total motile sperm number, and total sperm number declined more substantially than other semen quality parameters. Semen quality was more sensitive to cold exposure during the epididymal storage period than the sperm motility development period. By contrast, semen quality was insensitive to heat exposure during both critical spermatogenesis windows. Impairment of certain semen quality parameters was more obvious for males with higher educational attainment and those aged over 35 years.Discussion and conclusionExposure to non‐optimal temperature is associated with decreased semen quality in North China, with the epididymal storage and sperm motility development periods more sensitive to cold exposure than heat. Older males and those with higher educations may need particular awareness.

show abstract

Intraseasonal variation of the association between heat exposure and mortality risk in Shandong province, China

Cited by 3 publications

References 56 publications

The Association between Compound Hot Extremes and Mortality Risk in Shandong Province, China: A Time-Series Analysis

The Association between Compound Hot Extremes and Mortality Risk in Shandong Province, China: A Time-Series Analysis

Spatiotemporal dynamic mapping of heat exposure risk for different populations in city based on hourly multi-source data

The association between ambient temperature and semen quality in a Northern Peninsular Province, China

Contact Info

Product

Resources

About