Exposure to air pollution and risk of hospitalization for cardiovascular diseases amongst Vietnamese adults: Case-crossover study

[Display omitted] •PM2.5 and PM1 were positively associated with hospital admissions due to cardiovascular conditions in three provinces.•Ambient SO2 concentrations were an important indicator for hospital admissions due to cardiovascular diseases in Vietnam.•Stronger effects were observed in people...

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Bibliographic Details
Published in:The Science of the total environment 2020-02, Vol.703, p.134637-134637, Article 134637
Main Authors: Nhung, Nguyen Thi Trang, Schindler, Christian, Chau, Ngo Quy, Hanh, Phan Thi, Hoang, Le Tu, Dien, Tran Minh, Thanh, Nguyen Thi Nhat, Künzli, Nino
Format: Article
Language:English
Subjects:
Adult
Air Pollutants
Air Pollution
Ambient air pollution
Arrhythmia
Cardiac disease
Cardiac failure
Cardiovascular disease
Cardiovascular Diseases - epidemiology
Cities
Cross-Over Studies
Hospitalization
Humans
Ischemic heart disease
Particulate Matter
Stroke
Vietnam
Vietnam - epidemiology
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Summary:[Display omitted] •PM2.5 and PM1 were positively associated with hospital admissions due to cardiovascular conditions in three provinces.•Ambient SO2 concentrations were an important indicator for hospital admissions due to cardiovascular diseases in Vietnam.•Stronger effects were observed in people aged ≥65 and in the cold seasons.•The estimates from data of national hospitals were slightly stronger. Associations between hospital admissions and ambient air pollutants in the Vietnamese population have been reported in previous studies. However, most studies were conducted in Hanoi or Hochiminh city. We used hospital records of seven hospitals in Northern Vietnam to investigate short-term associations between ambient air pollutants and hospital admissions due to cardiovascular conditions. We used 135′101 hospital records of residents (age ≥15) living in three provinces (Hanoi, Quang Ninh, and Phu Tho) and daily ambient air pollutant concentrations to estimate percentage changes and 95% confidence intervals for hospital admissions due to seven cardiovascular conditions per interquartile range (IQR) increases in daily ambient air pollutants. We used a time-stratified case-crossover analysis adjusting for meteorological factors, indicators of holidays and influenza epidemics. We also investigated modification of effects by age groups (
ISSN:0048-9697
1879-1026
DOI:10.1016/j.scitotenv.2019.134637