Cited by 1,746Atrial Fibrillation Management and OutcomesAcute Ischemic Stroke ManagementCardiovascular Health and Risk Factors

50 year trends in atrial fibrillation prevalence, incidence, risk factors, and mortality in the Framingham Heart Study: a cohort study

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Schnabel, Renate B, Yin, Xiaoyan, Gona, Philimon, Larson, Martin G, Beiser, Alexa S, McManus, David D, Newton-Cheh, Christopher, Lubitz, Steven A +7 more·2015·The Lancet

Abstract

Background Comprehensive long-term data on atrial fibrillation trends in men and women are scant. We aimed to provide such data through analysis of the Framingham cohort over 50 years.Methods We investigated trends in incidence, prevalence, and risk factors for atrial fibrillation and its association with stroke and mortality after onset in 9511 participants enrolled in the Framingham Heart Study between 1958 and 2007. We analysed trends within 10 year groups (1958-67, 1968-77, 1978-87, 1988-97, and 1998-2007), stratified by sex.Findings During 50 years of observation (202,417 person-years), 1544 cases of new-onset atrial fibrillation occurred (of whom 723 [47%] were women). Between 1958-67 and 1998-2007, age-adjusted prevalence of atrial fibrillation quadrupled from 20·4 to 96·2 cases per 1000 person-years in men and from 13·7 to 49·4 cases per 1000 person-years in women; age-adjusted incidence increased from 3·7 to 13·4 new cases per 1000 person-years in men and from 2·5 to 8·6 new cases per 1000 person-years in women (ptrend<0·0001 for all comparisons). For atrial fibrillation diagnosed by electrocardiograph (ECG) during routine Framingham examinations, age-adjusted prevalence per 1000 person-years increased (12·6 in 1958-67 to 25·7 in 1998-2007 in men, ptrend=0·0007; 8·1 to 11·8 in women, ptrend=0·009). However, age-adjusted incidence of atrial fibrillation by Framingham Heart Study ECGs did not change significantly with time. Although the prevalence of most risk factors changed over time, their associated hazards for atrial fibrillation changed little. Multivariable-adjusted proportional hazards models revealed a 74% (95% CI 50-86%) decrease in stroke (hazards ratio [HR] 3·77, 95% CI 1·98-7·20 in 1958-1967 compared with 1998-2007; ptrend=0·0001) and a 25% (95% CI -3-46%) decrease in mortality (HR 1·34, 95% CI 0·97-1·86 in 1958-1967 compared with 1998-2007; ptrend=0·003) in 20 years following atrial fibrillation onset.Interpretation Trends of increased incidence and prevalence of atrial fibrillation in the community were probably partly due to enhanced surveillance. Measures are needed to enhance early detection of atrial fibrillation, through increased awareness coupled with targeted screening programmes and risk factor-specific prevention.Funding NIH, NHLBI, NINDS, Deutsche Forschungsgemeinschaft.

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Authors
Schnabel, R. B., Yin, X., Gona, P., Larson, M. G., Beiser, A. S., McManus, D. D., Newton-Cheh, C., Lubitz, S. A., Magnani, J. W., Ellinor, P. T., Seshadri, S., Wolf, P. A., Vasan, R. S., Benjamin, E. J., & Levy, D.
Affiliations
  • Framingham Heart Study (US)
  • Boston University (US)
  • University of Massachusetts Chan Medical School (US)
  • Harvard University (US)
  • Broad Institute (US)
Corresponding author
Schnabel, Renate B
Venue
The Lancet
Publisher
Elsevier BV
Published
2015-07
Volume
386
Issue
9989
Pages
154-162
ISSN
  • 0099-5355 (ISSN-L)
  • 0140-6736
OpenAlex
W1924098982
Cited by
1,746
References
32
Citations by year
2026: 126 · 2025: 209 · 2024: 253 · 2023: 192 · 2022: 198 · 2021: 155 · 2020: 145 · 2019: 141 · 2018: 120 · 2017: 110 · 2016: 76 · 2015: 20
FWCI
79.02
Type
journal article
Language
en
Open access
Locations
  • The Lancet (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • The Journal of the American Medical Association (JAMA) Network (American Medical Association) (submittedVersion)
Funders
  • NIH/NHLBI (contract N01-HC-25195, grant 1K23HL114724)
  • NIH (grants 1RC1HL101056, HL102214, and AG028321, grant 2R01HL092577, grants 1U01HL105268-01 and KL2RR031981)
  • Fondation Leducq (14CVD01) and NIH grants (1R01HL092577, 1RC1HL101056, 1R01HL102214, 1R01AG028321, R01HL104156, and 1K24HL105780)
  • American Heart Association Established Investigator Award (13EIA14220013)
  • Deutsche Forschungsgemeinschaft (German Research Foundation) Emmy Noether Program (SCHN 1149/3-2)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Atrial Fibrillation Management and Outcomes
  • Health Sciences › Medicine › Epidemiology › Acute Ischemic Stroke Management
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Health and Risk Factors
Keywords
atrial fibrillation, prevalence trends, incidence trends, sex differences, risk factors, stroke, mortality, Framingham Heart Study, electrocardiogram screening, atrial fibrillation screening, atrial fibrillation prevention, cardiovascular disease prevention, long-term cohort follow-up
MeSH terms
Aged, Aged, 80 and over, Atrial Fibrillation, Electrocardiography, Female, Humans, Male, Middle Aged, Mortality, Risk Factors, United States, Cohort Studies, Incidence, Prevalence, Age Distribution, Sex Distribution, Stroke

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