ArticleEnvironmental health and preventive medicine2021
The role of absolute humidity in respiratory mortality in Guangzhou, a hot and wet city of South China.
Article in Environmental health and preventive medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 38 citations in OpenAlex.
- Integrated analysis of fecal microbiome and serum metabolome reveals the profiling of gut microbiota-related metabolites in rats and mice subjected to prolonged exposure to a high-humidity environment.Frontiers in cellular and infection microbiology · 2026Article
- Exposure to living environmental risk factors and incidence of chronic lung disease in Chinese adults: results from a cross-sectional and longitudinal study.BMC public health · 2025Article
- Comparing the Role of Relative and Absolute Humidity in Heat-Related Mortality: A Case Time-Series Study in South Korea.Environmental health perspectives · 2025Article
- Seasonal variations and environmental influences on dry eye operations in Japan.Scientific reports · 2024Article
- Association between humidity and respiratory health: the 2016-2018 Korea National Health and Nutrition Examination Survey.Respiratory research · 2024Article
- Assessing the impact of meteorological factors and air pollution on respiratory disease mortality rates: a random forest model analysis (2017-2021).Scientific reports · 2024Article
- Ethnobotanical study of Hakka traditional medicine in Ganzhou, China and their antibacterial, antifungal, and cytotoxic assessments.BMC complementary medicine and therapies · 2022Article
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Authors and funding
6 authors at 4 institutions in 2 countries.
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Abstract
backgroundFor the reason that many studies have been inconclusive on the effect of humidity on respiratory disease, we examined the association between absolute humidity and respiratory disease mortality and quantified the mortality burden due to non-optimal absolute humidity in Guangzhou, China.
methodsDaily respiratory disease mortality including total 42,440 deaths from 1 February 2013 to 31 December 2018 and meteorological data of the same period in Guangzhou City were collected. The distributed lag non-linear model was used to determine the optimal absolute humidity of death and discuss their non-linear lagged effects. Attributable fraction and population attributable mortality were calculated based on the optimal absolute humidity, defined as the minimum mortality absolute humidity.
resultsThe association between absolute humidity and total respiratory disease mortality showed an M-shaped non-linear curve. In total, 21.57% (95% CI 14.20 ~ 27.75%) of respiratory disease mortality (9154 deaths) was attributable to non-optimum absolute humidity. The attributable fractions due to high absolute humidity were 13.49% (95% CI 9.56 ~ 16.98%), while mortality burden of low absolute humidity were 8.08% (95% CI 0.89 ~ 13.93%), respectively. Extreme dry and moist absolute humidity accounted for total respiratory disease mortality fraction of 0.87% (95% CI - 0.09 ~ 1.58%) and 0.91% (95% CI 0.25 ~ 1.39%), respectively. There was no significant gender and age difference in the burden of attributable risk due to absolute humidity.
conclusionsOur study showed that both high and low absolute humidity are responsible for considerable respiratory disease mortality burden, the component attributed to the high absolute humidity effect is greater. Our results may have important implications for the development of public health measures to reduce respiratory disease mortality.
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