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Long-Term Exposure to Fine and Coarse Particulate Matter and COVID-19 Incidence and Mortality Rate in Chile during 2020.
Valdés Salgado, Macarena; Smith, Pamela; Opazo, Mariel A; Huneeus, Nicolás.
  • Valdés Salgado M; Center for Climate and Resilience Research CR2, FONDAP N°15110009, Santiago 8370449, Chile.
  • Smith P; Programa de Epidemiología, Escuela de Salud Pública, Facultad de Medicina, Universidad de Chile, Santiago 8380453, Chile.
  • Opazo MA; Red de la Pobreza Energética-RedPE, Santiago 8320000, Chile.
  • Huneeus N; Center for Climate and Resilience Research CR2, FONDAP N°15110009, Santiago 8370449, Chile.
Int J Environ Res Public Health ; 18(14)2021 07 11.
Article in English | MEDLINE | ID: covidwho-1308348
ABSTRACT

BACKGROUND:

Several countries have documented the relationship between long-term exposure to air pollutants and epidemiological indicators of the COVID-19 pandemic, such as incidence and mortality. This study aims to explore the association between air pollutants, such as PM2.5 and PM10, and the incidence and mortality rates of COVID-19 during 2020.

METHODS:

The incidence and mortality rates were estimated using the COVID-19 cases and deaths from the Chilean Ministry of Science, and the population size was obtained from the Chilean Institute of Statistics. A chemistry transport model was used to estimate the annual mean surface concentration of PM2.5 and PM10 in a period before the current pandemic. Negative binomial regressions were used to associate the epidemiological information with pollutant concentrations while considering demographic and social confounders.

RESULTS:

For each microgram per cubic meter, the incidence rate increased by 1.3% regarding PM2.5 and 0.9% regarding PM10. There was no statistically significant relationship between the COVID-19 mortality rate and PM2.5 or PM10.

CONCLUSIONS:

The adjusted regression models showed that the COVID-19 incidence rate was significantly associated with chronic exposure to PM2.5 and PM10, even after adjusting for other variables.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: Air Pollutants / Air Pollution / COVID-19 Type of study: Observational study Topics: Long Covid Limits: Humans Country/Region as subject: South America / Chile Language: English Year: 2021 Document Type: Article Affiliation country: Ijerph18147409

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Air Pollutants / Air Pollution / COVID-19 Type of study: Observational study Topics: Long Covid Limits: Humans Country/Region as subject: South America / Chile Language: English Year: 2021 Document Type: Article Affiliation country: Ijerph18147409