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Table 3 Odds ratios for daily emergency hospital visits for hypertension for a 10 μg/m3 increase in air pollutants (Results from a time-stratified case-crossover for single pollutant and multiple pollutants models) a

From: Gaseous air pollution and emergency hospital visits for hypertension in Beijing, China: a time-stratified case-crossover study

Air pollutants

OR

95% CI

  

lower

upper

SO2

1.037b

1.004

1.071

   +PM10

1.025

0.987

1.065

   +NO2

0.997

0.949

1.048

   +PM10+NO2

0.997

0.945

1.051

NO2

1.101b

1.038

1.168

   +PM10

1.114b

1.037

1.195

   +SO2

1.130b

1.041

1.225

   +PM10+SO2

1.144b

1.046

1.251

  1. a ORs of SO2 are at lag 0 day; ORs of NO2 are at lag 3 day; OR: odds ratio; CI: confidence interval;
  2. b P < 0.05
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Environmental Health

ISSN: 1476-069X