Relationship of the risk of AMI associated with frequency of annual outpatient visits for gout
| Annual frequency of outpatient visits for gout | AMI cases (n) | PYs | Incidence rate (per 10,000) | Crude HR (95% CI) | Adjusted HR (95% CI) |
| Non-gout cohort | 182 | 124,020 | 14.68 | 1.00 (ref.) | 1.00 (ref.) |
| ≤12 | 59 | 31,646 | 18.64 | 1.28 (0.95 to 1.71) | 1.40 (0.85 to 1.88) |
| >12 | 21 | 9454 | 22.21 | 1.50 (1.06 to 2.86) | 1.54 (1.09 to 2.14) |
| P value for trend | <0.001 | 0.004 |
HRs were adjusted for age, sex, the index year, and comorbidities including hypertension, diabetes mellitus, hyperlipidemia, cerebrovascular disease, chronic obstructive pulmonary disease, chronic kidney disease, alcoholic liver disease, and malignant neoplasms.
AMI, acute myocardial infarction; PYs, person-years.