The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.
Sex Differences in Stroke Risk Among Older Patients With Recently Diagnosed Atrial Fibrillation
Abstract
CONTEXT: Stroke is a serious complication associated with atrial fibrillation (AF). Women with AF are at higher risk of stroke compared with men. Reasons for this higher stroke risk in women remain unclear, although some studies suggest that undertreatment with warfarin may be a cause. OBJECTIVE: To compare utilization patterns of warfarin and the risk of subsequent stroke between older men and women with AF at the population level. DESIGN, SETTING, AND PATIENTS: Population-based cohort study of patients 65 years or older admitted to the hospital with recently diagnosed AF in the province of Quebec, Canada, 1998-2007, using administrative data with linkage between hospital discharge, physicians, and prescription drug claims databases. MAIN OUTCOME MEASURES: Risk of stroke. RESULTS: The cohort comprised 39,398 men (47.2%) and 44,115 women (52.8%). At admission, women were older and had a higher CHADS(2) (congestive heart failure, hypertension, age ≥75 years, diabetes mellitus, prior stroke or transient ischemic attack) score than men (1.99 [SD, 1.10] vs 1.74 [SD, 1.13], P < .001). At 30 days postdischarge, 58.2% of men and 60.6% of women had filled a warfarin prescription. In adjusted analysis, women appeared to fill more warfarin prescriptions compared with men (odds ratio, 1.07 [95% CI, 1.04-1.11]; P < .001). Adherence to warfarin treatment was good in both sexes. Crude stroke incidence was 2.02 per 100 person-years (95% CI, 1.95-2.10) in women vs 1.61 per 100 person-years (95% CI, 1.54-1.69) in men (P < .001). The sex difference was mainly driven by the population of patients 75 years or older. In multivariable Cox regression analysis, women had a higher risk of stroke than men (adjusted hazard ratio, 1.14 [95% CI, 1.07-1.22]; P < .001), even after adjusting for baseline comorbid conditions, individual components of the CHADS(2) score, and warfarin treatment. CONCLUSION: Among older patients admitted with recently diagnosed AF, the risk of stroke was greater in women than in men, regardless of warfarin use.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Apixaban versus warfarin in patients with atrial fibrillation
Granger, C. B., Alexander, J. H., McMurray, J. J. V., Lopes, R. D., Hylek, E. M., Hanna, M., Al-Khalidi, H. R., Ansell, J., Atar, D., Avezum, A., et al. (2011) · New England Journal of Medicine · doi:10.1056/nejmoa1107039 · Cited by 8,943
Apixaban in patients with atrial fibrillation
Connolly, S. J., Eikelboom, J., Joyner, C., Diener, H.-C., Hart, R., Golitsyn, S., Flaker, G., Avezum, A., Hohnloser, S. H., Diaz, R., et al. (2011) · New England Journal of Medicine · doi:10.1056/nejmoa1007432 · Cited by 2,483
Mosca, L., Benjamin, E. J., Berra, K., Bezanson, J. L., Dolor, R. J., Lloyd-Jones, D. M., Newby, L. K., Piña, I. L., Roger, V. L., Shaw, L. J., et al. (2011) · Circulation · doi:10.1161/cir.0b013e31820faaf8 · Cited by 2,143
Effect of clopidogrel added to aspirin in patients with atrial fibrillation
The ACTIVE Investigators (2009) · New England Journal of Medicine · doi:10.1056/nejmoa0901301 · Cited by 2,102
Stewart, S., Hart, C. L., Hole, D. J., & McMurray, J. J. V. (2002) · The American Journal of Medicine · doi:10.1016/s0002-9343(02)01236-6 · Cited by 1,562
Mant, J., Hobbs, F. R., Fletcher, K., Roalfe, A., Fitzmaurice, D., Lip, G. Y., & Murray, E. (2007) · The Lancet · doi:10.1016/s0140-6736(07)61233-1 · Cited by 1,556
Fang, M. C., Singer, D. E., Chang, Y., Hylek, E. M., Henault, L. E., Jensvold, N. G., & Go, A. S. (2005) · Circulation · doi:10.1161/circulationaha.105.553438 · Cited by 469
New-Onset Atrial Fibrillation: Sex Differences in Presentation, Treatment, and Outcome
Humphries, K. H., Kerr, C. R., Connolly, S. J., Klein, G., Boone, J. A., Green, M., Sheldon, R., Talajic, M., Dorian, P., & Newman, D. (2001) · Circulation · doi:10.1161/01.cir.103.19.2365 · Cited by 378
Cited by
Heart Disease and Stroke Statistics—2017 Update: A Report From the American Heart Association
Benjamin, E. J., Blaha, M. J., Chiuve, S. E., Cushman, M., Das, S. R., Deo, R., de Ferranti, S. D., Floyd, J., Fornage, M., Gillespie, C., et al. (2017) · Circulation · doi:10.1161/cir.0000000000000485 · Cited by 12,591
Heart Disease and Stroke Statistics—2020 Update: A Report From the American Heart Association
Virani, S. S., Alonso, A., Benjamin, E. J., Bittencourt, M. S., Callaway, C. W., Carson, A. P., Chamberlain, A. M., Chang, A. R., Cheng, S., Delling, F. N., et al. (2020) · Circulation · doi:10.1161/cir.0000000000000757 · Cited by 9,175
Heart Disease and Stroke Statistics—2019 Update: A Report From the American Heart Association
Benjamin, E. J., Muntner, P., Alonso, A., Bittencourt, M. S., Callaway, C. W., Carson, A. P., Chamberlain, A. M., Chang, A. R., Cheng, S., Das, S. R., et al. (2019) · Circulation · doi:10.1161/cir.0000000000000659 · Cited by 9,036
Heart disease and stroke statistics-2018 update: a report from the american heart association
Benjamin, E. J., Virani, S. S., Callaway, C. W., Chamberlain, A. M., Chang, A. R., Cheng, S., Chiuve, S. E., Cushman, M., Delling, F. N., Deo, R., et al. (2018) · Circulation · doi:10.1161/cir.0000000000000558 · Cited by 7,146
Heart Disease and Stroke Statistics—2016 Update: A Report From the American Heart Association
Mozaffarian, D., Benjamin, E. J., Go, A. S., Arnett, D. K., Blaha, M. J., Cushman, M., Das, S. R., de Ferranti, S., Després, J.-P., Fullerton, H. J., et al. (2016) · Circulation · doi:10.1161/cir.0000000000000350 · Cited by 6,596
Metadata
- Authors
- Jackevicius, C. A.
- Venue
- JAMA
- Publisher
- American Medical Association (AMA)
- Published
- 2012-05-09
- Volume
- 307
- Issue
- 18
- Pages
- 1952
- ISSN
- 0002-9955 (ISSN-L)
- 0098-7484
- OpenAlex
- W2092504136
- Cited by
- 241
- References
- 8
- FWCI
- 20.91
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Sex Differences in Stroke Risk Among Older Patients With Recently Diagnosed Atrial Fibrillation. https://app.cochat.ai/papers/10.1001/jama.2012.3490
- The paper
- Jackevicius, C. A. (2012). Sex Differences in Stroke Risk Among Older Patients With Recently Diagnosed Atrial Fibrillation. JAMA. https://doi.org/10.1001/jama.2012.3490
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.