2021, Number 4
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salud publica mex 2021; 63 (4)
Association between Covid-19 mortality and atmospheric pollution in Mexican cities
Cabrera-Cano ÁA, Cruz-de la Cruz JC, Gloria-Alvarado AB, Álamo-Hernández U, Riojas-RodríguezH
Language: Spanish
References: 37
Page: 470-477
PDF size: 245.45 Kb.
ABSTRACT
Objective. To analyze the relationship between chronic
exposures to air pollution with Covid-19 death rate in
Mexican cities.
Materials and methods. Ecological
study in 25 Mexican cities using the report of daily Covid-19
deaths (from February to June 2020) and validated data of
air pollutants, considering average concentrations in each
city for the last year. Poisson regression models using generalized
additive models with adjustment variables (GAM)
were used.
Results. A significant increase of 3.5% (95% CI
2.3-4.7) was found in Covid-19 death rate for each 1µg/m
3
in annual concentration of NO
2. The association with PM
2.5 was not significant, with an increase of 1.8% for each 1µg/
m
3.
Conclusions. Results suggest an association between
Covid-19 mortality and chronic exposure to NO
2. This
first approximation of the risk associated with air pollution
requires a more precise analysis, but is consistent with what
was observed in other studies.
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