Table 4.
Multivariable model for the composite outcome of any atrial fibrillation–related emergency department (ED) visits or unplanned cardiovascular (CV) hospitalizations and the individual components
| Variable | Composite outcome |
P | AF-related ED visits |
P | Unplanned CV hospitalizations |
P |
|---|---|---|---|---|---|---|
| IRR (95% CI) | IRR (95% CI) | IRR (95% CI) | ||||
| Location: urban vs rural | 0.62 (0.42, 0.91) | 0.0149 | 0.64 (0.4, 1.04) | 0.0689 | 0.53 (0.3, 0.96) | 0.0349 |
| Age (1-y increase) | 0.97 (0.95, 0.99) | 0.0036 | 0.97 (0.94, 0.99) | 0.0142 | 0.98 (0.95, 1.01) | 0.2056 |
| Sex: female vs male | 1.45 (0.98, 2.15) | 0.0637 | 1.56 (0.95, 2.55) | 0.078 | 1.25 (0.71, 2.22) | 0.4409 |
| CHADS2 (1-unit increase) | 1.15 (0.99, 1.34) | 0.0704 | 0.98 (0.8, 1.2) | 0.8613 | 1.57 (1.28, 1.94) | <.0001 |
| Obstructive sleep apnea | 1.37 (0.86, 2.18) | 0.1799 | 1.58 (0.9, 2.78) | 0.1144 | 0.79 (0.38, 1.66) | 0.5365 |
CHADS2, Congestive Heart Failure, Hypertension, Age, Diabetes, Stroke/Transient Ischemic Attack; CI, confidence interval; IRR, incidence rate ratio.