Skip to main content

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