Relative odds of OHCA per unit increase in pollutant concentration among all arrests in single pollutant models
| Data | OR | 95% CI | OR | 95% CI | OR | 95% CI |
|---|---|---|---|---|---|---|
| PM2.5 | PM10 | CO | ||||
| 0 | 0.999 | (0.995 to 1.004) | 1.000 | (0.997 to 1.002) | 1.095 | (1.013 to 1.183)** |
| 1 | 1.001 | (0.997 to 1.005) | 1.000 | (0.998 to 1.002) | 1.061 | (0.981 to 1.147) |
| 2 | 1.001 | (0.997 to 1.005) | 0.999 | (0.997 to 1.001) | 1.067 | (0.985 to 1.156) |
| 3 | 1.002 | (0.998 to 1.006) | 0.999 | (0.997 to 1.002) | 1.081 | (0.996 to 1.172)* |
| 0–1 | 1.000 | (0.996 to 1.005) | 1.000 | (0.997 to 1.002) | 1.089 | (1.003 to 1.183)** |
| 0–2 | 1.001 | (0.996 to 1.005) | 0.999 | (0.997 to 1.002) | 1.092 | (1.001 to 1.191)** |
| 0–3 | 1.001 | (0.996 to 1.006) | 0.999 | (0.996 to 1.002) | 1.096 | (1.001 to 1.199)** |
| 0–4 | 1.003 | (0.997 to 1.008) | 0.999 | (0.996 to 1.002) | 1.100 | (1.002 to 1.208)** |
| 0–8 | 1.006 | (1.000 to 1.011)** | 1.000 | (0.997 to 1.004) | 1.090 | (0.989 to 1.201)* |
| 0–12 | 1.007 | (1.001 to 1.013)** | 1.002 | (0.999 to 1.006) | 1.114 | (1.010 to 1.228)** |
| 0–24 | 1.009 | (1.002 to 1.016)** | 1.002 | (0.998 to 1.006) | 1.058 | (0.938 to 1.192) |
| 0–48 | 1.010 | (1.001 to 1.018)** | 1.001 | (0.996 to 1.006) | 1.040 | (0.904 to 1.197) |
| O3 | NO2 | SO2 | ||||
| 0 | 1.000 | (0.996 to 1.003) | 1.002 | (0.998 to 1.007) | 0.997 | (0.988 to 1.007) |
| 1 | 0.999 | (0.996 to 1.003) | 1.000 | (0.995 to 1.005) | 1.001 | (0.991 to 1.010) |
| 2 | 1.000 | (0.997 to 1.003) | 0.997 | (0.992 to 1.001) | 0.995 | (0.985 to 1.005) |
| 3 | 1.000 | (0.997 to 1.004) | 0.998 | (0.993 to 1.003) | 0.997 | (0.987 to 1.008) |
| 0–1 | 0.999 | (0.996 to 1.003) | 1.001 | (0.997 to 1.006) | 0.999 | (0.988 to 1.009) |
| 0–2 | 1.000 | (0.996 to 1.003) | 1.000 | (0.994 to 1.005) | 0.996 | (0.984 to 1.007) |
| 0–3 | 1.000 | (0.996 to 1.004) | 0.999 | (0.994 to 1.004) | 0.995 | (0.983 to 1.008) |
| 0–4 | 1.000 | (0.997 to 1.004) | 0.999 | (0.993 to 1.004) | 0.995 | (0.982 to 1.009) |
| 0–8 | 1.000 | (0.996 to 1.004) | 0.999 | (0.993 to 1.005) | 0.991 | (0.974 to 1.009) |
| 0–12 | 1.000 | (0.996 to 1.005) | 0.999 | (0.993 to 1.006) | 0.988 | (0.967 to 1.010) |
| 0–24 | 1.002 | (0.997 to 1.007) | 0.997 | (0.990 to 1.004) | 0.991 | (0.967 to 1.016) |
| 0–48 | 1.001 | (0.995 to 1.006) | 1.000 | (0.992 to 1.008) | 0.9859 | (0.957 to 1.015) |
*p<0.1.
**p<0.05.
***p<0.01.
PM, particulate matter; OHCA, out-of-hospital cardiac arrest.