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Table 3 Odds ratios calculated via different lag-day model structures

From: Associations between short-term exposure to gaseous pollutants and pulmonary heart disease-related mortality among elderly people in Chengdu, China

Air pollutants Lag (days) OR OR 95% CI
Lower upper
SO2 0 1.053 a 1.029 1.079
  1 1.078 a 1.053 1.104
2 1.048 a 1.024 1.073
3 1.017 0.995 1.040
01 1.086 a 1.057 1.116
02 1.095 a 1.064 1.128
03 1.090 a 1.056 1.124
NO2 0 1.046 a 1.031 1.062
  1 1.062 a 1.046 1.078
2 1.050 a 1.034 1.066
3 1.032 a 1.016 1.048
01 1.064 a 1.047 1.082
02 1.074 a 1.054 1.093
03 1.077 a 1.056 1.098
CO 0 1.004 0.997 1.012
  1 1.004 0.997 1.011
2 0.996 0.989 1.004
3 0.995 0.988 1.003
01 1.008 0.998 1.017
02 1.004 0.993 1.015
03 1.000 0.988 1.013
O3 0 1.006 0.976 1.037
  1 1.034 a 1.008 1.061
2 1.055 a 1.031 1.080
3 1.011 0.988 1.034
01 1.037 a 1.000 1.074
02 1.076 a 1.036 1.117
03 1.070 a 1.029 1.113
PM2.5 0 1.032 a 1.018 1.047
  1 1.038 a 1.023 1.053
2 1.028 a 1.013 1.042
3 1.013 0.999 1.027
01 1.042 a 1.026 1.058
02 1.045 a 1.027 1.062
03 1.043 a 1.025 1.062
  1. Abbreviations: SO2 sulfur dioxide, NO2 nitrogen dioxide, CO carbon monoxide, O3 ozone, PM2.5 particulate matter less than 2.5 μm in aerodynamic diameter, OR odds ratio, CI confidence interval
  2. aP < 0.05