The DOI matches its Crossref record.
Work Activity and Coronary Heart Mortality
Abstract
To appraise the role of physical activity in reducing coronary mortality among longshoremen, 6351 men, 35 to 74 years old upon entry, were followed for 22 years or to death or to the age of 75. Their longshoring experience was computed in terms of work-years according to categories of high, medium and low caloric output. Individual work assignments were reclassified annually to allow for effect of job transfers. The age-adjusted coronary death rate for the high-activity category was 26.9 per 10,000 work-years, and the medium and low catgories had rates of 46.3 and 49.0 which were little different from each other. This protective "threshold" effect was seen especially for the sudden-death syndrome, in which the death rate for heavy workers was 5.6, as contrasted with 19.9 for moderate and 15.7 for light workers. We conclude that repeated bursts of high energy output established a plateau of protection against coronary mortality, and that several different mechanisms may explain this finding.
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
Cited by
Health benefits of physical activity: the evidence
Warburton, D. E. R. (2006) · Canadian Medical Association Journal · doi:10.1503/cmaj.051351 · Cited by 8,007
Fletcher, G. F., Ades, P. A., Kligfield, P., Arena, R., Balady, G. J., Bittner, V. A., Coke, L. A., Fleg, J. L., Forman, D. E., Gerber, T. C., et al. (2013) · Circulation · doi:10.1161/cir.0b013e31829b5b44 · Cited by 2,235
Fletcher, G. F., Balady, G. J., Amsterdam, E. A., Chaitman, B., Eckel, R., Fleg, J., Froelicher, V. F., Leon, A. S., Piña, I. L., Rodney, R., et al. (2001) · Circulation · doi:10.1161/hc3901.095960 · Cited by 1,923
Andersen, L. B., Schnohr, P., Schroll, M., & Hein, H. O. (2000) · Archives of Internal Medicine · doi:10.1001/archinte.160.11.1621 · Cited by 1,035
Triggering of Sudden Death from Cardiac Causes by Vigorous Exertion
Albert, C. M., Mittleman, M. A., Chae, C. U., Lee, I.-M., Hennekens, C. H., & Manson, J. E. (2000) · New England Journal of Medicine · doi:10.1056/nejm200011093431902 · Cited by 1,020
Metadata
- Authors
- Paffenbarger, R. S., & Hale, W. E.
- Venue
- New England Journal of Medicine
- Publisher
- Massachusetts Medical Society
- Published
- 1975-03-13
- Volume
- 292
- Issue
- 11
- Pages
- 545-550
- ISSN
- 0028-4793 (ISSN-L)
- 1533-4406
- OpenAlex
- W2093472884
- Cited by
- 581
- References
- 0
- FWCI
- 18.43
- 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: Work Activity and Coronary Heart Mortality. https://app.cochat.ai/papers/10.1056/nejm197503132921101
- The paper
- Paffenbarger, R. S., & Hale, W. E. (1975). Work Activity and Coronary Heart Mortality. New England Journal of Medicine. https://doi.org/10.1056/nejm197503132921101
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.
