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. Author manuscript; available in PMC: 2023 Oct 15.
Published in final edited form as: Sci Total Environ. 2022 Jun 21;843:156855. doi: 10.1016/j.scitotenv.2022.156855

Table 3.

Main Results-Difference-in-Difference Analysis of Air Pollution and Temperature and Hospital Admissions

Cardiovascular Disease1,2 Myocardial Infarction1,2 Stroke1,2 Respiratory Disease1,2
Rate Difference Lower 95% CI Upper 95% CI Rate Difference Lower 95% CI Upper 95% CI Rate Difference Lower 95% CI Upper 95% CI Rate Difference Lower 95% CI Upper 95% CI
Warm Temp 3.79 −12.18 16.77 −3.76 −7.92 0.31 0.74 −2.86 4.09 62.13 51.68 73.02
Cold Temp −50.48 −60.18 −40.20 −5.01 −7.67 −2.18 −9.66 −11.95 −7.45 −66.42 −73.73 −59.93
NO2 −0.84 −3.79 1.61 −0.83 −1.55 −0.10 0.49 −0.12 1.11 3.16 1.34 5.24
O3 9.08 4.78 13.19 2.23 1.12 3.37 1.18 0.24 2.13 9.51 6.59 12.13
PM2.5 47.71 41.25 56.05 7.44 5.53 9.63 1.75 −0.10 3.60 18.58 12.42 23.72
1

All results are presented per 100,000 person-years

2

Results reflect the effect for each one unit increase in annual exposure levels. For warm and cold-season temperature the units are degrees Celsius. For NO2 and O3, the units are parts per billion (ppb) and for PM2.5 the units are μg/m3