Environmental pollutants and stroke-related hospital admissions

Cad Saude Publica. 2012 Jul;28(7):1319-24. doi: 10.1590/s0102-311x2012000700010.


Some effects of environmental pollution on human health are known, especially those affecting the respiratory and cardiovascular systems. The current study aimed to estimate these effects on the production of hospital admissions for stroke. This was an ecological study using hospital admissions data in São José dos Campos, São Paulo State, Brazil, with diagnosis of stroke, from January 1, 2007, to April 30, 2008. The target pollutants were particulate matter, sulfur dioxide, and ozone. Use of a Poisson linear regression model showed that same-day exposure to particulate matter was associated with hospitalization for stroke (RR = 1.013; 95%CI: 1.001-1.025). An increase of 10 µg/m(3) in this pollutant increased the risk of hospitalization by 12% (RR = 1.137; 95%CI: 1.014-1.276). In the multi-pollutant model, it was thus possible to identify particulate matter as associated with hospitalization for stroke in a medium-sized city like São José dos Campos.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Air Pollutants / adverse effects*
  • Air Pollutants / analysis
  • Air Pollution / adverse effects*
  • Air Pollution / analysis
  • Brazil
  • Environmental Exposure / adverse effects*
  • Female
  • Hospitalization / statistics & numerical data*
  • Humans
  • Inhalation Exposure / adverse effects
  • Male
  • Middle Aged
  • Ozone / adverse effects
  • Ozone / analysis
  • Particulate Matter / adverse effects
  • Stroke / diagnosis
  • Stroke / etiology*
  • Sulfur Dioxide / adverse effects
  • Sulfur Dioxide / analysis


  • Air Pollutants
  • Particulate Matter
  • Sulfur Dioxide
  • Ozone