Table 3 Cause-specific relative risk (95% confidence interval) of ambulance services associated with daily 99th percentile PM10 (155 μg/m3) and PM2.5(91 μg/m3) relative to Q1 levels (40 μg/m3 and 20 μg/m3, respectively).
From: Ambulance Services Associated with Extreme Temperatures and Fine Particles in a Subtropical Island
Model without adjusting temperature | Model adjusted temperature | |||
|---|---|---|---|---|
RR | 95% CI | RR | 95% CI | |
Respiratory distress | ||||
PM10, 99th percentile | 1.05 | (0.97–1.13) | 1.09 | (1.01–1.18) |
PM2.5, 99th percentile | 1.10 | (1.02–1.19) | 1.15 | (1.07–1.24) |
Coma and unconsciousness | ||||
PM10, 99th percentile | 1.01 | (0.94–1.09) | 1.06 | (0.99–1.14) |
PM2.5, 99th percentile | 0.99 | (0.92–1.07) | 1.04 | (0.96–1.14) |
Chest pain | ||||
PM10, 99th percentile | 0.98 | (0.88–1.10) | 1.03 | (0.92–1.14) |
PM2.5, 99th percentile | 1.07 | (0.98–1.18) | 1.11 | (1.01–1.23) |
Headache/dizziness/vertigo/fainting/syncope | ||||
PM10, 99th percentile | 0.91 | (0.86–0.97) | 0.99 | (0.93–1.06) |
PM2.5, 99th percentile | 0.93 | (0.88–0.99) | 1.02 | (0.97–1.09) |
Lying in public | ||||
PM10, 99th percentile | 0.99 | (0.90–1.09) | 1.02 | (0.93–1.13) |
PM2.5, 99th percentile | 0.94 | (0.84–1.04) | 0.98 | (0.88–1.09) |
Out-of-hospital cardiac arrest | ||||
PM10, 99th percentile | 0.96 | (0.87–1.06) | 1.03 | (0.94–1.14) |
PM2.5, 99th percentile | 1.01 | (0.92–1.11) | 1.12 | (1.02–1.23) |
