Table 3.
Difference in daily event rates for respiratory symptoms per 100,000 members associated with selected particulate matter with an aerodynamic diameter <2.5 μm metrics
| Current Day PM2.5 | Calls/E-mails | Provider Visits | ED/UC Visits | Hospital Admissions | |
|---|---|---|---|---|---|
|
Absolute change in daily event rates per 100,000 members |
|||||
| 1.25 ug/m3 (IQR) | 0.10 | 0.31 | 0.20 | 0.03 | |
| 95% CI | (0.03 to 0.17) | (0.18 to 0.44) | (0.12 to 0.27) | (0.00 to 0.06) | |
| 10.0 μg/m3 increase | 0.78 | 2.48 | 1.59 | 0.21 | |
| 95% CI | (0.21 to 1.35) | (1.44 to 3.51) | (1.00 to 2.18) | (−0.03 to 0.46) | |
|
Percent change in daily event rates per 100,000 members |
|||||
| 1.25 ug/m3 (IQR) | 0.33 | 0.33 | 0.74 | 0.53 | |
| 95% CI | (0.09 to 0.57) | (0.19 to 0.46) | (0.47 to 1.02) | (−0.07 to 1.14) | |
| 10.0 μg/m3 increase | 2.61 | 2.63 | 5.96 | 4.20 | |
| 95% CI | (0.71 to 4.53) | (1.53 to 3.72) | (3.73 to 8.15) | (−0.57 to 9.13) | |
Definition of abbreviations: CI = confidence interval; ED/UC = emergency department and urgent care; IQR = interquartile range; PM2.5 = particulate matter with an aerodynamic diameter <2.5 μm.
Bold typeface represents statistically significant effect estimates.