Table 2.
HRs and 95% CIs
| Cohort | Methods | Main Analysis | Not Adjusted for Year | Not Adjusted for Meteorological Variables |
|---|---|---|---|---|
| 2000–2016 | Matching | 1.068 (1.054, 1.083) | 1.089 (1.075, 1.103) | 1.077 (1.063, 1.092) |
| Weighting | 1.076 (1.065, 1.088) | 1.144 (1.134, 1.154) | 1.087 (1.076, 1.098) | |
| Adjustment | 1.072 (1.061, 1.082) | 1.115 (1.103, 1.128) | 1.061 (1.050, 1.072) | |
| Cox | 1.066 (1.058, 1.074) | 1.172 (1.164, 1.180) | 1.058 (1.050, 1.066) | |
| Poisson | 1.062 (1.055, 1.069) | 1.166 (1.158, 1.174) | 1.057 (1.049, 1.064) | |
| 2000–2016 Low Levela | Matching | 1.261 (1.233, 1.289) | 1.318 (1.287, 1.349) | 1.251 (1.222, 1.280) |
| Weighting | 1.268 (1.237, 1.300) | 1.387 (1.355, 1.419) | 1.262 (1.232, 1.291) | |
| Adjustment | 1.231 (1.180, 1.284) | 1.424 (1.327, 1.527) | 1.233 (1.169, 1.299) | |
| Cox | 1.369 (1.340, 1.399) | 1.569 (1.536, 1.602) | 1.358 (1.330, 1.387) | |
| Poisson | 1.347 (1.320, 1.375) | 1.541 (1.510, 1.573) | 1.343 (1.316, 1.370) | |
| 2000–2012 | Matching | 1.055 (1.042, 1.068) | 1.085 (1.072, 1.098) | |
| Weighting | 1.067 (1.056, 1.079) | 1.114 (1.103, 1.125) | ||
| Adjustment | 1.047 (1.037, 1.057) | 1.078 (1.065, 1.090) | ||
| Cox | 1.059 (1.051, 1.067) | 1.128 (1.120, 1.136) | ||
| Poisson | 1.055 (1.048, 1.063) | 1.123 (1.116, 1.131) | ||
| 2000–2012 Low Levela | Matching | 1.271 (1.241, 1.301) | 1.293 (1.262, 1.324) | |
| Weighting | 1.298 (1.254, 1.344) | 1.383 (1.343, 1.425) | ||
| Adjustment | 1.233 (1.176, 1.292) | 1.385 (1.291, 1.485) | ||
| Cox | 1.367 (1.331, 1.404) | 1.538 (1.497, 1.580) | ||
| Poisson | 1.342 (1.308, 1.377) | 1.509 (1.471, 1.548) |
a Low level = Medicare beneficiaries exposed to PM2.5 ≤ 12 μg/m3. (From Wu et al. 2020, © the Authors, some rights reserved; exclusive licensee AAAS. Distributed under a CC BY-NC 4.0 License.)