The DOI matches its Crossref record; 28 of the 28 references it cites were found in a registry or an index.
Baseline estrogen levels in postmenopausal women participating in the MAP.3 breast cancer chemoprevention trial
Open accessAbstract
OBJECTIVE: The aim of the study was to quantify baseline estradiol (E2) and estrone (E1) concentrations according to selected patient characteristics in a substudy nested within the MAP.3 chemoprevention trial. METHODS: E2 and E1 levels were measured in 4,068 postmenopausal women using liquid chromatography-tandem mass spectrometry. Distributions were described by age, years since menopause, race, body mass index (BMI), smoking status, and use and duration of hormone therapy using the Kruskal-Wallis test. Multivariable linear regression was also used to identify characteristics associated with estrogen levels. RESULTS: After truncation at the 97.5th percentile, the mean (SD)/median (IQR) values for E2 and E1 were 5.41 (4.67)/4.0 (2.4-6.7) pg/mL and 24.7 (14.1)/21 (15-31) pg/mL, respectively. E2 and E1 were strongly correlated (Pearson correlation [r] = 0.8, P < 0.01). The largest variation in E2 and E1 levels was by BMI; mean E2 and E1 levels were 3.5 and 19.1 pg/mL, respectively for women with BMI less than 25 and 7.5 and 30.6 pg/mL, respectively, for women with BMI greater than 30. E2 and E1 varied by age, BMI, smoking status, and prior hormone therapy in multivariable models (P < 0.01). CONCLUSIONS: There was large interindividual variability observed for E2 and E1 that varied significantly by participant characteristics, but with small absolute differences except in the case of BMI. Although the majority of participant characteristics were independently associated with E1 and E2, together, these factors only explained about 20% of the variation in E1 and E2 levels.
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.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
Both untreated girls with Turner syndrome with confirmed hypogonadism and post-menopausal women have E2 concentrations around 18 pmol L−1 (5 pg mL−1).
“Both untreated girls with TS with confirmed hypogonadism and post-menopausal women have E2 concentrations around 18 pmol L−1 (5 pg mL−1).”
From Clinical practice guidelines for the care of girls and women with Turner syndrome. (2024) · cites this paper as [315]
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
Gail, M. H., Brinton, L. A., Byar, D. P., Corle, D. K., Green, S. B., Schairer, C., & Mulvihill, J. J. (1989) · JNCI Journal of the National Cancer Institute · doi:10.1093/jnci/81.24.1879 · Cited by 3,334
The Endogenous Hormones and Breast Cancer Collaborative Group (2002) · JNCI Journal of the National Cancer Institute · doi:10.1093/jnci/94.8.606 · Cited by 1,799
A breast cancer prediction model incorporating familial and personal risk factors
Tyrer, J., Duffy, S. W., & Cuzick, J. (2004) · Statistics in Medicine · doi:10.1002/sim.1668 · Cited by 1,345
Menopausal Estrogen and Estrogen-Progestin Replacement Therapy and Breast Cancer Risk
Schairer, C. (2000) · JAMA · doi:10.1001/jama.283.4.485 · Cited by 1,046
Exemestane for Breast-Cancer Prevention in Postmenopausal Women
Goss, P. E., Ingle, J. N., Alés-Martínez, J. E., Cheung, A. M., Chlebowski, R. T., Wactawski-Wende, J., McTiernan, A., Robbins, J., Johnson, K. C., Martin, L. W., et al. (2011) · New England Journal of Medicine · doi:10.1056/nejmoa1103507 · Cited by 970
Self-citationA Prospective Study of Endogenous Estrogens and Breast Cancer in Postmenopausal Women
Toniolo, P. G., Levitz, M., Zeleniuch‐Jacquotte, A., Banerjee, S., Koenig, K. L., Shore, R. E., Strax, P., & Pasternack, B. S. (1995) · JNCI Journal of the National Cancer Institute · doi:10.1093/jnci/87.3.190 · Cited by 619
Alcohol, Height, and Adiposity in Relation to Estrogen and Prolactin Levels in Postmenopausal Women
Hankinson, S. E., Willett, W. C., Manson, J. E., Hunter, D. J., Colditz, G. A., Stampfer, M. J., Longcope, C., & Speizer, F. E. (1995) · JNCI Journal of the National Cancer Institute · doi:10.1093/jnci/87.17.1297 · Cited by 559
THE EPIDEMIOLOGY OF SERUM SEX HORMONES IN POSTMENOPAUSAL WOMEN
Cauley, J. A., Gutai, J. P., Kuller, L. H., LEDONNE, D., & POWELL, J. G. (1989) · American Journal of Epidemiology · doi:10.1093/oxfordjournals.aje.a115234 · Cited by 485
Cauley, J. A., Lucas, F. L., Kuller, L. H., Stone, K., Browner, W., Cummings, S. R., & for the Study of Osteoporotic Fractures Research Group (1999) · Annals of Internal Medicine · doi:10.7326/0003-4819-130-4_part_1-199902160-00004 · Cited by 409
Challenges to the measurement of estradiol: an Endocrine Society Position Statement
Rosner, W., Hankinson, S. E., Sluss, P. M., Vesper, H. W., & Wierman, M. E. (2013) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2012-3780 · Cited by 408
Nelson, R. E., Grebe, S. K. G., O’Kane, D. J., & Singh, R. J. (2004) · Clinical Chemistry · doi:10.1373/clinchem.2003.025478 · Cited by 359
Self-citationPolymorphisms Associated With Circulating Sex Hormone Levels in Postmenopausal Women
Dunning, A. M., Dowsett, M., Healey, C. S., Tee, L. J., Luben, R., Folkerd, E. J., Novik, K. L., Kelemen, L., Ogata, S., Pharoah, P. D. P., et al. (2004) · JNCI Journal of the National Cancer Institute · doi:10.1093/jnci/djh167 · Cited by 346
Relation of BMI and physical activity to sex hormones in postmenopausal women
McTiernan, A., Wu, L., Chen, C., Chlebowski, R., Mossavar‐Rahmani, Y., Modugno, F., Perri, M. G., Stanczyk, F. Z., Van Horn, L., Wang, C. Y., et al. (2006) · Obesity · doi:10.1038/oby.2006.191 · Cited by 327
Verkasalo, P. K., Thomas, H. V., Appleby, P. N., Davey, G. K., & Key, T. J. (2001) · Cancer Causes & Control · doi:10.1023/a:1008929714862 · Cited by 286
Genome-wide Copy-Number-Variation Study Identified a Susceptibility Gene, UGT2B17, for Osteoporosis
Yang, T., Chen, X., Guo, Y., Lei, S., Wang, J.-T., Zhou, Q., Pan, F., Chen, Y., Zhang, Z.-X., Dong, S.-S., et al. (2008) · The American Journal of Human Genetics · doi:10.1016/j.ajhg.2008.10.006 · Cited by 219
Estrogen Metabolism and Risk of Breast Cancer in Postmenopausal Women
Fuhrman, B. J., Schairer, C., Gail, M. H., Boyd-Morin, J., Xu, X., Sue, L. Y., Buys, S. S., Isaacs, C. J., Keefer, L. K., Veenstra, T. D., et al. (2012) · JNCI Journal of the National Cancer Institute · doi:10.1093/jnci/djr531 · Cited by 206
Variable Phenotypes Associated with Aromatase (CYP19) Insufficiency in Humans
Lin, L., Ercan, O., Raza, J., Burren, C. P., Creighton, S., Auchus, R. J., Dattani, M., & Achermann, J. C. (2006) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2006-1181 · Cited by 115
Falk, R. T., Brinton, L. A., Dorgan, J. F., Fuhrman, B. J., Veenstra, T. D., Xu, X., & Gierach, G. L. (2013) · Breast Cancer Research · doi:10.1186/bcr3416 · Cited by 110
Wang, L., Ellsworth, K. A., Moon, I., Pelleymounter, L. L., Eckloff, B. W., Martin, Y. N., Fridley, B. L., Jenkins, G. D., Batzler, A. J., Suman, V. J., et al. (2010) · Cancer Research · doi:10.1158/0008-5472.can-09-3224 · Cited by 105
Self-citationBoyapati, S. M., Shu, X., Gao, Y., Dai, Q., Yu, H., Cheng, J.-R., Jin, F., & Zheng, W. (2004) · Cancer Causes & Control · doi:10.1023/b:caco.0000024256.48104.50 · Cited by 67
A new approach to measuring estrogen exposure and metabolism in epidemiologic studies
Ziegler, R. G., Faupel‐Badger, J. M., Sue, L. Y., Fuhrman, B. J., Falk, R. T., Boyd-Morin, J., Henderson, M., Hoover, R. N., Veenstra, T. D., Keefer, L. K., et al. (2010) · The Journal of Steroid Biochemistry and Molecular Biology · doi:10.1016/j.jsbmb.2010.03.068 · Cited by 48
TSPYL5 SNPs: Association with Plasma Estradiol Concentrations and Aromatase Expression
Liu, M., Ingle, J. N., Fridley, B. L., Buzdar, A. U., Robson, M. E., Kubo, M., Wang, L., Batzler, A. J., Jenkins, G. D., Pietrzak, T. L., et al. (2013) · Molecular Endocrinology · doi:10.1210/me.2012-1397 · Cited by 48
Self-citationFukami, M., Tsuchiya, T., Vollbach, H., Brown, K. A., Abe, S., Ohtsu, S., Wabitsch, M., Burger, H., Simpson, E. R., Umezawa, A., et al. (2013) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2013-2520 · Cited by 30
Role of the UGT2B17 deletion in exemestane pharmacogenetics
Luo, S., Chen, G., Truica, C. I., Campbell‐Baird, C., Leitzel, K. E., & Lazarus, P. J. (2017) · The Pharmacogenomics Journal · doi:10.1038/tpj.2017.18 · Cited by 17
Giroux, S., Bussières, J., Bureau, A., & Rousseau, F. (2011) · Osteoporosis International · doi:10.1007/s00198-011-1662-6 · Cited by 14
High Estradiol Levels During Postmenopause – Pitfalls in Laboratory Analysis
Mebes, I., Graf, M., Kellner, M., Keck, C., & Segerer, S. (2015) · Geburtshilfe und Frauenheilkunde · doi:10.1055/s-0035-1557815 · Cited by 8
Does the estrogen receptor gene polymorphism relate to undefined menopausal symptoms?
Ushiroyama, T., Heishi, M., Ikeda, A., et al. (2001) · PubMed · Cited by 7
Niravath, P. A., Bhat, R. R., Alameri, M. S., Al-Rawi, A., Foreman, C., & Trivedi, M. V. (2017) · Pharmacology Research & Perspectives · doi:10.1002/prp2.330 · Cited by 7
Flagged first, then by citations
Cited by
Sorted by citations
Clinical practice guidelines for the care of girls and women with Turner syndrome.
Gravholt, C. H., Andersen, N. H., Christin-Maitre, S., Davis, S. M., Duijnhouwer, A., Gawlik, A., Maciel-Guerra, A. T., Gutmark-Little, I., Fleischer, K., Hong, D., et al. (2024) · European Journal of Endocrinology · doi:10.1093/ejendo/lvae050 · Cited by 224
Metadata
- Authors
- Richardson, H., Ho, V., Pasquet, R., Singh, R. J., Goetz, M. P., Tu, D., Goss, P. E., & Ingle, J. N.
- Affiliations
- Queen's University (CA)
- Centre Hospitalier de l’Université de Montréal (CA)
- Mayo Clinic (US)
- Harvard University (US)
- Corresponding author
- Richardson, Harriet
- ORCID
- Venue
- Menopause
- Published
- 2020-05-18
- Volume
- 27
- Issue
- 6
- Pages
- 693-700
- ISSN
- 1072-3714 (ISSN-L)
- 1530-0374
- PMC
- PMC7469568
- OpenAlex
- W3027901360
- Cited by
- 37
- References
- 28
- Citations by year
- 2026: 4 · 2025: 11 · 2024: 8 · 2023: 5 · 2022: 5 · 2021: 4
- FWCI
- 2.64
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Menopause The Journal of The North American Menopause Society (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Cancer Institute (P50CA116201)
- Topics
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Menopause: Health Impacts and Treatments
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Endocrinology › Estrogen and related hormone effects
- Health Sciences › Medicine › Oncology › Cancer Risks and Factors
- Keywords
- estradiol, estrone, postmenopausal women, breast cancer chemoprevention, body mass index, hormone therapy, smoking status, racial differences, interindividual variability, baseline hormone levels
- MeSH terms
- Breast Neoplasms, Estradiol, Estrogens, Estrone, Female, Humans, Postmenopause, Chemoprevention
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