Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 164

The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.

Placental Weight Relative to Birth Weight and Long-term Cardiovascular Mortality: Findings From a Cohort of 31,307 Men and Women

Risnes, K. R., Romundstad, P. R., Nilsen, T. I. L., Eskild, A., Vatten, L. J.·2009·American Journal of Epidemiology

Abstract

Birth weight is inversely associated with risk of adult cardiovascular disease, and evidence exists that fetal adaptation to challenges in the intrauterine environment may adversely affect long-term cardiovascular health. The placenta is in a key position to mediate such effects because adequate placental function is necessary for delivery of nutrients, oxygen, and hormones to the fetus. This prospective population study based on data from the hospital birth charts of 31,307 Norwegian men and women born between 1934 and 1959 assessed whether placental weight relative to birth weight was associated with risk of death from cardiovascular disease in adulthood. During 45 years of follow-up, 382 people died from cardiovascular disease (median age, 51.3 years). Results showed that the placenta-to-birth-weight ratio was positively associated with cardiovascular disease mortality; the sex- and cohort-adjusted hazard ratio for the highest versus the lowest third was 1.38 (95% confidence interval: 1.07, 1.77). The authors concluded that a disproportionately large placenta relative to birth weight was associated with increased risk of cardiovascular disease death. This finding suggests that placental function is important in the association of intrauterine factors with cardiovascular disease later in life.

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 · 10.1093/aje/kwp182

Cites

7 of 7 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

Show all 7 references

Cited by

See all 164

Metadata

Authors
Risnes, K. R., Romundstad, P. R., Nilsen, T. I. L., Eskild, A., & Vatten, L. J.
Venue
American Journal of Epidemiology
Published
2009-07-28
Volume
170
Issue
5
Pages
622-631
ISSN
  • 0002-9262 (ISSN-L)
  • 1476-6256
OpenAlex
W2115948746
Cited by
164
References
7
FWCI
6.64
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: Placental Weight Relative to Birth Weight and Long-term Cardiovascular Mortality: Findings From a Cohort of 31,307 Men and Women. https://app.cochat.ai/papers/10.1093/aje/kwp182
The paper
Risnes, K. R., Romundstad, P. R., Nilsen, T. I. L., Eskild, A., & Vatten, L. J. (2009). Placental Weight Relative to Birth Weight and Long-term Cardiovascular Mortality: Findings From a Cohort of 31,307 Men and Women. American Journal of Epidemiology. https://doi.org/10.1093/aje/kwp182

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.