Skip to main content

Table 4 Incidence Rate Ratios* for PM10 exposure on the same day per 10 μg/m3, separated by age and sex

From: Ambient particulate matter and biomass burning: an ecological time series study of respiratory and cardiovascular hospital visits in northern Thailand

  PM10 PM10 + CO
Chronic Lower Respiratory Disease
 Male 1.012 (1.001 to 1.024) 1.017 (1.005 to 1.030)
 Female 1.028 (1.017 to 1.039) 1.034 (1.022 to 1.046)
  < 65 years 1.021 (1.011 to 1.032) 1.029 (1.017 to 1.040)
  ≥ 65 years 1.018 (1.005 to 1.031) 1.021 (1.007 to 1.035)
Ischaemic Heart Disease
 Male 0.997 (0.970 to 1.025) 1.001 (0.972 to 1.031)
 Female 0.989 (0.961 to 1.018) 0.992 (0.962 to 1.023)
  < 65 years 0.973 (0.944 to 1.003) 0.971 (0.940 to 1.002)
  ≥ 65 years 1.010 (0.983 to 1.037) 1.018 (0.989 to 1.047)
Cerebrovascular Disease
 Male 1.025 (1.004 to 1.046) 1.023 (1.001 to 1.045)
 Female 1.013 (0.990 to 1.036) 1.017 (0.993 to 1.042)
  < 65 years 1.022 (1.000 to 1.044) 1.025 (1.002 to 1.049)
  ≥ 65 years 1.018 (0.996 to 1.039) 1.016 (0.993 to 1.039)
  1. *Adjusted for season, day of the week, province, mean daily temperature, relative humidity, and days of higher biomass burning-PM (bold results indicate p < 0.05)