Journal
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Volume 28, Issue 37, Pages 51888-51896Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-021-14345-z
Keywords
Temperature; Thermal indices; Thermal stress; Physiological equivalent temperature; Respiratory hospital admissions
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Funding
- Ahvaz Jundishapur University of Medical Sciences [APRD-9913]
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This study found that low PET values can reduce the risk of respiratory disease hospital admissions in the warm climate of Ahvaz, except for asthma where low PET values increase the risk of hospital admissions.
Although Ahvaz is considered as one of the warmest cities around the world, few epidemiological studies have been conducted on the adverse effects of temperature on human health using thermal indices in this city. This study investigates the relation between physiologically equivalent temperature (PET) and respiratory hospital admissions in Ahvaz. Distributed lag non-linear models (DLNMs) combined with quasi-Poisson regression models were used to investigate the relation between PET and respiratory disease hospital admissions, adjusted for the effect of time trend, air pollutants (NO2, SO2, and PM10), and weekdays. The analysis was performed by utilizing R software. Low PET values significantly decreased the risk of hospital admissions for total respiratory diseases, respiratory diseases in men and women, chronic obstructive pulmonary diseases (COPD), and bronchiectasis. However, low PET (16.9 degrees C) in all lags except lag 0-30 significantly increased the risk of hospital admissions for asthma. The results indicate that in Ahvaz, which has a warm climate, cold weather decreased overall respiratory hospital admissions, except for asthma.
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