Table 3 Odds ratios between stroke occurrence and concentration of air pollutants, Dijon stroke register (France), from 1994 to 2004.
| Pollutants | Ischaemic stroke (women and men), n = 1487 | Haemorrhagic stroke (women and men), n = 220 | Ischaemic stroke (men), n = 689 | Ischaemic stroke (women), n = 798 | ||||
|---|---|---|---|---|---|---|---|---|
| ORa (95% CI) | p Value | ORa (95% CI) | p Value | ORa (95% CI) | p Value | ORa (95% CI) | p Value | |
| SO2 | ||||||||
| D0. | 0.978 (0.868 to 1.103) | 0.72 | 1.099 (0.815 to 1.483) | 0.53 | 0.900 (0.748 to 1.081) | 0.26 | 1.044 (0.892 to 1.222) | 0.58 |
| D‐1. | 0.978 (0.863 to 1.108) | 0.73 | 1.014 (0.747 to 1.376) | 0.92 | 0.981 (0.813 to 1.183) | 0.84 | 0.975 (0.824 to 1.153) | 0.77 |
| D‐2 | 1.015 (0.902 to 1.143) | 0.79 | 0.961 (0.712 to 1.297) | 0.79 | 1.109 (0.935 to 1.315) | 0.23 | 0.939 (0.797 to 1.106) | 0.45 |
| D‐3 | 1.003 (0.892 to 1.127) | 0.95 | 0.954 (0.729 to 1.248) | 0.73 | 1.033 (0.862 to 1.237) | 0.72 | 0.981 (0.841 to 1.144) | 0.80 |
| NOx | ||||||||
| D0. | 1.008 (0.956 to 1.062) | 0.76. | 0.974 (0.845 to 1.122) | 0.71 | 1.002 ()0.925 to 1.084 | 0.95 | 1.013 (0.943 to 1.087) | 0.71 |
| D‐1 | 0.966 (0.915 to 1.019) | 0.21 | 1.015 (0.887 to 1.162) | 0.82 | 0.939 (0.866 to 1.018) | 0.12 | 0.987 (0.919 to 1.061) | 0.73 |
| D‐2 | 0.996 (0.945 to 1.050) | 0.90 | 0.975 (0.851 to 1.117) | 0.72 | 1.013 (0.938 to 1.094) | 0.73 | 0.982 (0.913 to 1.055) | 0.62 |
| D‐3 | 1.027 (0.975 to 1.082) | 0.30 | 0.936 (0.816 to 1.074) | 0.34 | 1.016 (0.941 to 1.097) | 0.67 | 1.037 (0.966 to 1.114) | 0.30 |
| O3 | ||||||||
| D0. | 1.046 (0.998 to 1.098) | 0.059 | 1.012. (0.902 to 1.158) | 0.73 | 1.058 (0.987 to 1.134) | 0.10 | 1.036 (0.969 to 1.106) | 0.29 |
| D‐1 | 1.075 (1.022 to 1.131) | 0.005 | 0.974 (0.978 to 1.122) | 0.75 | 1.133 (1.052 to 1.220) | 0.001 | 1.027 (0.958 to 1.101) | 0.44 |
| D‐2 | 1.012 (0.965 to 1.062) | 0.60 | 0.958 (0.842 to 1.090) | 0.51 | 1.020 (0.951 to 1.092) | 0.57 | 1.006 (0.941 to 1.075) | 0.85 |
| D‐3 | 0.987 (0.943 to 1.043) | 0.60 | 0.970 (0.856 to 1.098) | 0.63 | 1.000 (0.935 to 1.068) | 1.00 | 0.976 (0.915 to 1.040) | 0.46 |
| CO | ||||||||
| D0 | 0.999 (0.997 to 1.001) | 0.43 | 1.000 (0.996 to 1.004) | 0.70 | 0.998 (0.995 to 1.000) | 0.15 | 1.000 (0.998 to 1.002) | 0.84 |
| D‐1 | 0.998 (0.997 to 1.000) | 0.17 | 1.001 (0.997 to 1.005) | 0.54 | 0.998 (0.995 to 1.000) | 0.19 | 0.999 (0.997 to 1.001) | 0.70 |
| D‐2 | 0.999 (0.998 to 1.001) | 0.82 | 0.999 (0.995 to 1.004) | 0.88 | 1.000 (0.997 to 1.002) | 0.96 | 0.999 (0.997 to 1.001) | 0.70 |
| D‐3 | 1.000 (0.998 to 1.001) | 0.93 | 0.998 (0.994 to 1.002) | 0.46 | 1.000 (0.998 to 1.003) | 0.62 | 0.999 (0.997 to 1.002) | 0.72 |
| PM10§ | ||||||||
| D0. | 1.009 (0.930 to 1.094) | 0.82 | 0.901 (0.730 to 1.111) | 0.33 | 0.973 (0.862 to 1.098) | 0.66 | 1.040 (0.933 to 1.160) | 0.47 |
| D‐1 | 1.011 (0.998 to 1.094) | 0.77 | 1.014 (0.828 to 1.241) | 0.85 | 0.969 (0.860 to 1.091) | 0.60 | 1.047 (0.942 to 1.163) | 0.39 |
| D‐2 | 0.960 (0.889 to 1.036) | 0.30 | 1.100 (0.903 to 1.339) | 0.34 | 0.981 (0.877 to 1.098) | 0.74 | 0.941 (0.847 to 1.045) | 0.26 |
| D‐3 | 0.990 (0.919 to 1.066) | 0.79 | 0.991 (0.881 to 1.212) | 0.93 | 0.985 (0.881 to 1.102) | 0.80 | 0.993 (0.899 to 1.096) | 0.89 |
ORa, adjusted odds ratio for minimum temperature (1‐day lag), maximum relative humidity (1‐day lag), holiday (0‐day lag) and influenza epidemics (0‐day lag) and for an increase of 10 units (μg/m3) of pollutant.
§PM10 data from 1999 to 2004: ischaemic stroke (women and men) n = 762, haemorrhagic stroke (women and men) n = 99, ischaemic stroke (men) n = 357, ischaemic stroke (women) n = 412.