Table 5.
Odds ratios (ORs) and 95% confidence intervals for the odds of cardiovascular mortality during extreme heat (EH, the 99th percentile of mean apparent temperature over lag days 0-3) vs. non-EH among elderly individuals without (low) or with (high) a given individual characteristic or elderly individuals residing in ZIP codes in the 25th (low) or 75th (high) percentiles of the ZIP-code characteristic, with multiple interactions per model, in 8 Michigan cities, May-September, 1990-2007.
| Characteristic | Model 1 | Model 2 | Model 3 | Model 4 | ||||
|---|---|---|---|---|---|---|---|---|
| Low | High | Low | High | Low | High | Low | High | |
| Non-married | 0.98 (0.90-1.07) |
1.21 (1.14-1.28)*** | 0.98 (0.90-1.07) |
1.21 (1.14-1.28)*** | 0.98 (0.90-1.07) |
1.21 (1.14-1.28)*** | 0.98 (0.90-1.07) |
1.21 (1.14-1 29)*** |
| No high school | 1.09 (1.02-1.17) |
1.00 (0.92-1.09)* | 1.09 (1.02-1.17) |
1.00 (0.92-1.09)* | 1.10 (1.02-1.17) |
1.00 (0.92-1.09)* | 1.10 (1.03-1.18) |
1.01 (0.93-1.1)* |
| Male | 1.03 (0.95-1.11) |
1.10 (1.02-1.18) | 1.03 (0.95-1.11) |
1.10 (1.02-1.18) | 1.03 (0.95-1.12) |
1.10 (1.02-1.18) | 1.03 (0.95-1.12) |
1.10 (1.03-1.18) |
| Black | 1.06 (0.99-1.13) |
1.05 (0.92-1.21) | 1.06 (0.99-1.12) |
1.06 (0.93-1.21) | 1.06 (1.00-1.13) |
1.05 (0.92-1.21) | 1.06 (1.00-1.13) |
1.06 (0.92-1.22) |
| Age 79+ | 1.09 (1.01-1.18) |
1.03 (0.96-1.11) | 1.09 (1.01-1.18) |
1.03 (0.96-1.11) | 1.09 (1.01-1.18) |
1.04 (0.96-1.11) | 1.10 (1.01-1.19) |
1.04 (0.97-1.12) |
| % Non-green | 0.98 (0.89-1.07) |
1.17 (1.06-1.29)** | 0.97 (0.89-1.07) |
1.17 (1.06-1.29)** | 0.97 (0.89-1.05) |
1.18 (1.09-1.28)*** | ||
| % 65 and alone |
1.05 (0.98-1.12) |
1.06 (0.99-1.14) | 1.05 (0.98-1.12) |
1.06 (0.99-1.14) | 1.05 (0.99-1.12) |
1.06 (0.99-1.14) | 1.04 (0.97-1.11) |
1.08 (1.01-1.15) |
| % Below poverty |
1.05 (0.97-1.14) |
1.06 (0.99-1.14) | 1.04 (0.97-1.12) |
1.07 (1.00-1.14) | 1.04 (0.96-1.12) |
1.08 (1.01-1.16) | ||
| % Built < 1940a |
1.03 (0.91-1.16) |
1.08 (0.96-1.23) | 1.03 (0.92-1.16) |
1.09 (0.98-1.22) | 0.98 (0.88-1.09) |
1.07 (0.94-1.21) | ||
| % Built 1940- 1959a |
1.03 (0.91-1.16) |
1.05 (0.98-1.13) | 1.03 (0.92-1.16) |
1.05 (0.98-1.13) | 0.98 (0.88-1.09) |
1.06 (0.99-1.14)** | ||
| % Built 1960- 1979a |
1.03 (0.91-1.16) |
1.07 (1.00-1.16) | 1.03 (0.92-1.16) |
1.08 (1.00-1.16) | 0.98 (0.88-1.09) |
1.06 (0.99-1.14) | ||
Significance of interaction term:
*
p < 0.10
**
p < 0.05
***
p < 0.001.
a
Remaining values of % Built variables set to 20% when one set to high (40%).