Incidence rates of atrial fibrillation in patients with gout compared with those with osteoarthritis
| Gout | Osteoarthritis | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Atrial fibrillation | No. of patients | Cases | Person- years | Incidence rate (95% CI) | No. of patients | Cases | Person- years | Incidence rate (95% CI) | Rate ratio* (95% CI) |
| In/outpatient diagnosis+anticoagulants/antiarrhythmics | 70 015 | 1029 | 143 185 | 7.19 (6.76 to 7.64) | 210 045 | 2438 | 415 578 | 5.87 (5.64 to 6.11) | 1.22 (1.13 to 1.31) |
| Inpatient diagnosis | 70 015 | 685 | 143 856 | 4.76 (4.42 to 5.13) | 210 045 | 1771 | 416 929 | 4.25 (4.06 to 4.45) | 1.12 (1.03 to 1.22) |
| Inpatient diagnosis+anticoagulants/antiarrhythmics | 70 015 | 451 | 144 116 | 3.13 (2.85 to 3.43) | 210 045 | 1186 | 417 659 | 2.84 (2.68 to 3.01) | 1.10 (0.99 to 1.23) |
Incidence rate is per 1000 person-years.
*Matched on age, sex and index date.