Table 2.
Association of AF With Inpatient (MedPAR) and Outpatient Healthcare Utilization Among Atherosclerosis Risk in Communities Study Participants
| AF (n=932) | No AF (n=2729) | |
|---|---|---|
| Follow‐up, years (mean±SD) | 4.1±3.6 | 4.2±3.6 |
| Inpatient (MedPAR) utilization, days | ||
| Per person, median (IQR)* | 10 (0 to 30) | 0 (0 to 7) |
| Unadjusted rate* | 13.2 (11.6 to 15. 0) | 2.8 (2.5 to 3.1) |
| Unadjusted rate ratio | 4.84 (4.02 to 5.82) | Reference |
| Rate ratio adjusted for matching criteria* | 4.85 (4.03 to 5.84) | Reference |
| Fully adjusted rate ratio* | 3.94 (3.29 to 4.73) | Reference |
| Outpatient utilization* | ||
| Per person, median (IQR)* | 122.5 (47 to 232.5) | 50 (17 to 115) |
| Unadjusted rate* | 53.3 (50.5 to 56.3) | 22.9 (22.1 to 23.8) |
| Unadjusted rate ratio | 2.34 (2.18 to 2.50) | Reference |
| Rate ratio adjusted for matching criteria* | 2.33 (2.17 to 2.49) | Reference |
| Fully adjusted rate ratio* | 2.14 (2.00 to 2.29) | Reference |
AF indicates atrial fibrillation; IQR, interquartile range; MedPAR, Medicare Provider Analysis and Review.
*
During follow‐up.
*
Rate per year.
*
Adjusted for matching criteria: age (±2 years), sex, race, and field center.
*
Adjusted for matching criteria and for high school graduate, current smoking, current drinking, body mass index, hypertension, antihypertensive medication, diabetes mellitus, creatinine‐based estimated glomerular filtration rate, forced expiratory volume in 1 second, and prior heart failure and coronary heart disease.
*
Outpatient utilization defined as unique claims per date of service.