Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 344

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Aspirin Prophylaxis of Venous Thromboembolism after Total Hip Replacement

Harris, William H., Salzman, Edwin W., Athanasoulis, Christos A., Waltman, Arthur C., DeSanctis, Roman W.·1977·New England Journal of Medicine

Abstract

We assessed aspirin prophylaxis against venous thromboembolism in a prospective, controlled, double-blind study of patients over 40 years of age, who had undergone total hip replacement. Radiographic phlebography was the diagnostic end point. Thromboembolism developed in 11 of 44 patients receiving aspirin, as compared to 23 of 51 receiving the placebo (P less than 0.03). Unexpectedly, this protection was limited to men. In four of 23 men on aspirin thrombi developed, as compared to 14 of 25 receiving placebo (P less than 0.01). Corresponding figures for women were seven of 21 versus nine of 26. Review of a similar group of patients receiving aspirin revealed significantly greater protection (P less than 0.03) in men (three of 15) than in women (15 of 27). These data establish statistically significant prophylaxis in men over the age of 40 by 600 mg of aspirin given twice daily. The absence of a protective effect in women remains unexplained.

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.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1056/nejm197712082972302

Cites

1 of 1 references verified0 citation errors · 0 not checkable

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.

A few free checks a day · papers already verified open instantly · results are public

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

Cited by

See all 344

Metadata

Authors
Harris, W. H., Salzman, E. W., Athanasoulis, C. A., Waltman, A. C., & DeSanctis, R. W.
Venue
New England Journal of Medicine
Published
1977-12-08
Volume
297
Issue
23
Pages
1246-1249
ISSN
  • 0028-4793 (ISSN-L)
  • 1533-4406
OpenAlex
W2336435715
Cited by
344
References
1
FWCI
34.29
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: Aspirin Prophylaxis of Venous Thromboembolism after Total Hip Replacement. https://app.cochat.ai/papers/10.1056/nejm197712082972302
The paper
Harris, W. H., Salzman, E. W., Athanasoulis, C. A., Waltman, A. C., & DeSanctis, R. W. (1977). Aspirin Prophylaxis of Venous Thromboembolism after Total Hip Replacement. New England Journal of Medicine. https://doi.org/10.1056/nejm197712082972302

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.