Table 2.
Association between county characteristics and the probability of having an existing heat plan in 2011, based on a simple logistic regression of heat plan status on each community characteristic.
| County characteristic (n = 185) | Percentile | Expected percent of heat plan at | OR (95% CI) | ||
|---|---|---|---|---|---|
| 25th | 75th | 25th percentile | 75th percentile | ||
| Population (n) | 22,000 | 161,000 | 34 | 48 | 1.83 (1.23, 2.72) |
| Average July maximum temperature, 2001–2010 | 77°F | 89°F | 39 | 43 | 1.14 (0.72, 1.75) |
| Percent poverty | 7 | 12 | 45 | 39 | 0.79 (0.55, 1.14) |
| Percent of population ≥ 65 years | 12 | 17 | 45 | 39 | 0.76 (0.52, 1.12) |
| The ORs and 95% CIs are shown for a change covering the interquartile range across all counties for each county characteristic. | |||||