Table 3.
Odds ratios (ORs) and 95% confidence intervals for the odds of mortality (cardiovascular or respiratory) during extreme heat (EH03, the 97th or 99th percentiles of mean apparent temperature over lag days 0-3) vs. non-extreme heat in models with or without terms for the mean of ozone over lag days 0-1 (OZ01) or lag days 0-3 (OZ03) among the elderly in 8 Michigan cities or in 4 Michigan cities with ozone monitors (Detroit, Flint, Grand Rapids and Lansing), May-September, 1990-2007.
| Model | N cities | Cardiovascular | Respiratory | ||
|---|---|---|---|---|---|
| 97th percentile EH03 | 99th percentile EH03 | 97th percentile EH03 | 99th percentile EH03 | ||
| EH03 | 8 | 1.08 (1.05-1.11) | 1.14 (1.09-1.19) | 1.01 (0.94-1.07) | 1.05 (0.95-1.16) |
| EH03 | 4 | 1.08 (1.04-1.11) | 1.15 (1.10-1.21) | 0.99 (0.92-1.06) | 1.09 (0.98-1.21) |
| EH03 + OZ01 | 4 | 1.06 (1.02-1.09) | 1.13 (1.07-1.18) | 0.98 (0.91-1.06) | 1.05 (0.94-1.18) |
| EH03 + OZ03 | 4 | 1.05 (1.01-1.08) | 1.12 (1.06-1.18) | 0.97 (0.90-1.05) | 1.06 (0.95-1.19) |