Childhood Rotavirus Infection Associated with Temperature and Particulate Matter 2.5 µm: A Retrospective Cohort Study

Hui-Chen Tseng, Fung-Chang Sung, Chih-Hsin Mou, Chao W. Chen, Shan P. Tsai, Dennis P. H. Hsieh, Chung-Yen Lu, Pei-Chun Chen and Ya-Ling Tzeng
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Hui-Chen Tseng: School of Nursing and Graduate Institute of Nursing, China Medical University, Taichung 406, Taiwan
Fung-Chang Sung: Management Office for Health Data, China Medical University Hospital, Taichung 404, Taiwan
Chih-Hsin Mou: Management Office for Health Data, China Medical University Hospital, Taichung 404, Taiwan
Chao W. Chen: University of Maryland Global Campus, Adelphi, MD 20783, USA
Shan P. Tsai: School of Public Health, Texas A&M University, College Station, TX 77843, USA
Dennis P. H. Hsieh: Department of Environmental Toxicology, University of California, Davis, CA 95616, USA
Chung-Yen Lu: Department of Sport and Health Management, Da-Yeh University, Changhua 515, Taiwan
Pei-Chun Chen: Department of Public Health, China Medical University College of Public Health, Taichung 406, Taiwan
Ya-Ling Tzeng: School of Nursing and Graduate Institute of Nursing, China Medical University, Taichung 406, Taiwan

IJERPH, 2021, vol. 18, issue 23, 1-10

Abstract: No study has ever investigated how ambient temperature and PM 2.5 mediate rotavirus infection (RvI) in children. We used insurance claims data from Taiwan in 2006–2012 to evaluate the RvI characteristics in children aged ≤ 9. The RvI incidence rates were higher in colder months, reaching the highest in March (117.0/100 days), and then declining to the lowest in July (29.2/100 days). The age–sex-specific average incident cases were all higher in boys than in girls. Stratified analysis by temperature (<20, 20–24, and ≥25 °C) and PM 2.5 (<17.5, 17.5–31.4, 31.5–41.9, and ≥42.0 μg/m 3 ) showed that the highest incidence was 16.4/100 days at average temperatures of <20 °C and PM 2.5 of 31.5–41.9 μg/m 3 , with Poisson regression analysis estimating an adjusted relative risk (aRR) of 1.26 (95% confidence interval (CI) = 1.11–1.43), compared to the incidence at the reference condition (<20 °C and PM 2.5 < 17.5 μg/m 3 ). As the temperature increased, the incident RvI cases reduced to 4.84 cases/100 days (aRR = 0.40, 95% CI = 0.35–0.45) when it was >25 °C with PM 2.5 < 17.5 μg/m 3 , or to 9.84/100 days (aRR = 0.81, 95% CI = 0.77–0.93) when it was >25 °C with PM 2.5 > 42 μg/m 3 . The seasonal RvI is associated with frequent indoor personal contact among children in the cold months. The association with PM 2.5 could be an alternative assessment due to temperature inversion.

Keywords: ambient temperature; fine particulate matter; interaction; rotavirus infection; seasonality (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
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