From: Particulate air pollution and survival in a COPD cohort
City | HR at the 25% Percentile | HR at the 75% Percentile | |||||||
---|---|---|---|---|---|---|---|---|---|
Characteristics | P-value for modifier | 1st Quartile | HR | 95% CI | 3rd Quartile | HR | 95% CI | ||
Percent population aged 65+ in poverty status | |||||||||
0.56 | 1.4 | 1.12 | 1.06 | 1.18 | 2.7 | 1.10 | 1.05 | 1.15 | |
Annual mortality rate for emphysema in 65+ | |||||||||
0.19 | 29.5 | 1.09 | 1.04 | 1.14 | 46.9 | 1.12 | 1.07 | 1.17 | |
PM 10 from traffic | |||||||||
0.27 | 2.3 | 1.12 | 1.07 | 1.18 | 5.0 | 1.09 | 1.05 | 1.14 | |
Air Conditioning | |||||||||
0.77 | 26.0 | 1.11 | 1.06 | 1.17 | 67.0 | 1.10 | 1.04 | 1.16 | |
Population density | |||||||||
0.09 | 670.0 | 1.13 | 1.08 | 1.18 | 2344.1 | 1.11 | 1.07 | 1.16 | |
Medium income | |||||||||
0.26 | 4.3 | 1.13 | 1.07 | 1.18 | 5.6 | 1.10 | 1.05 | 1.14 | |
Mean summer app temperature | |||||||||
0.91 | 21.6 | 1.11 | 1.06 | 1.16 | 26.3 | 1.10 | 1.05 | 1.16 | |
Variance of summer temperature | |||||||||
0.84 | 11.0 | 1.10 | 1.04 | 1.16 | 21.4 | 1.11 | 1.05 | 1.17 |