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IRRs for ED Visits as a Function of Age at Study Entry, Dementia Status, and Medical Burden
| IRR | Z | P > (Z) | 95% CI | ||
|---|---|---|---|---|---|
| Dementia status | 1.50 | 2.56 | .01 | 1.10 | 2.05 |
| Medical burden | 1.11 | 4.76 | .00 | 1.06 | 1.16 |
| Age | 1.01 | 0.97 | .33 | 0.99 | 1.04 |
Abbreviation: ED, emergency department; IRRs, incidence rate ratios.
