Table 3 The percent change of stroke risk associated with 10 μg/m3 and per IQR increase of SO2 in different lag days and age group (single pollutant model)
Lag Day | Â | Ischemic stroke | Hemorrhagic stroke | ||
|---|---|---|---|---|---|
< 65 years | ≥65 years | < 65 years | ≥65 years | ||
Lag 0 | per 10 μg/m3 | 1.39 (0.35–2.45) | 1.21 (0.02–2.42) | 1.55 (− 0.14 - 3.26) | 1.04 (− 2.04 - 4.23) |
per IQR | 3.03 (0.75–5.36) | 2.64 (0.05–5.30) | 3.37 (− 0.29 - 7.18) | 2.27 (−4.36 - 9.35) | |
Lag 1 | per 10 μg/m3 | 1.31 (0.27–2.35) | 0.68 (− 0.50 - 1.88) | 1.47 (− 0.18 - 3.16) | 0.25 (− 2.79 - 3.40) |
per IQR | 2.84 (0.59–5.14) | 1.48 (− 1.08 - 4.10) | 3.21 (− 0.39 - 6.93) | 0.55 (− 5.93 - 7.48) | |
Lag 2 | per 10 μg/m3 | 0.80 (− 0.22 - 1.82) | 0.03 (− 1.13 - 1.20) | 0.65 (− 0.97 - 2.30) | 2.31 (− 0.69 - 5.40) |
per IQR | 1.73 (− 0.47 - 3.98) | 0.06 (− 2.43 - 2.61) | 1.41 (− 2.09 - 5.03) | 5.06 (− 1.48 - 12.03) | |
Lag 3 | per 10 μg/m3 | 0.82 (− 0.19 - 1.83) | 0.24 (− 0.91 - 1.40) | 1.18 (− 0.42 - 2.81) | − 0.57 (− 3.49 - 2.44) |
per IQR | 1.77 (− 0.4 - 3.99) | 0.51 (− 1.95 - 3.04) | 2.57 (− 0.90 - 6.16) | − 1.23 (− 7.39 - 5.33) | |