Arrhythmias & electrophysiology
Reported Incidence of Atrial Fibrillation Varies by Ethnicity and Presentation in the Multi-Ethnic Study of Atherosclerosis
Main finding · AF reported only during hospitalizationResult — go to the resultIncidence rate ratio 0.40 95% CI 0.19–0.75Authors' conclusion
The reported incidence of AF varies with the inclusion of self-reported data and across ethnic and racial groups. The inclusion of self-reported data increased the reported incidence of AF the most among Chinese individuals and the least among Hispanic participants. In the MESA study, the inclusion of self-reported data reveals heterogeneous changes across ethnic and racial groups, which may be due to differences in true incidence, methods of ascertainment, symptom perception, or health care access, and deserves further exploration.
Study context
- Population
- Adults aged 45 to 84 years, free from baseline atrial fibrillation (AF) and major cardiovascular events, monitored over 8.4 years (2000–2012)
- Participants
- 6,775 adults
- Comparison
- Incidence rate ratios and adjusted hazard ratios were calculated with White participants as the referent group
- Whiten = 2,611reference
- Chinesen = 800
- Hispanicn = 1,485
- Blackn = 1,879
- Outcome
- AF reported only during hospitalization
Methodological details6 US locations
- 6 US locations
Main finding
As reported in the abstract
Incidence rate ratio
0.40
95% CI 0.19–0.75
P = 0.009
Further findings
| Outcome | Incidence rate ratio (95% CI) | P value | |
|---|---|---|---|
| AF only via self-reportingHispanicvs White | 0.29 (0.15–0.51) | P < 0.001 | |
| 0.10.31310Incidence rate ratio (log scale) |
Combined overall reported AF incidence
- Combined overall reported AF incidence — Overall
- 6.4%, or 7.72 per 1000 person-years
- Combined overall reported AF incidence: Chinese vs White P =0.003
- Combined overall reported AF incidence: Hispanics vs White P <0.001
- Combined overall reported AF incidence: Blacks vs White P <0.001
Baseline characteristics
- Mean age
- 62.15 (10.24) years
- Male
- 47.1%
Original publication
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