Cited by 142Ovarian function and disordersHypothalamic control of reproductive hormonesReproductive Health and Contraception

The DOI matches its Crossref record; 6 of the 6 references it cites were found in a registry or an index.

Application of a Method for Estimating Day of Ovulation Using Urinary Estrogen and Progesterone Metabolites

Abstract

Longitudinal epidemiologic studies of menstrual and reproductive function are more informative if one can identify day of ovulation. We previously developed a method for estimating day of ovulation that is feasible for epidemiologic studies. The method relies on the relative concentrations of estrogen and progesterone metabolites in daily first-morning urine specimens and does not require creatinine adjustment. This paper describes results of applying this method to a large study with 724 menstrual cycles from 217 women. The method estimated a credible day of ovulation in 88% of cycles. Missing data accounted for most of the failures. When we excluded anovulatory cycles (1%) and cycles with missing data, the method estimated a day of ovulation in 97% of cycles. Variance in luteal phase length was small for our sample, suggesting that this method of identifying a day of ovulation introduces no more measurement error than when day of ovulation is determined by plasma luteinizing hormone (LH), the standard clinical method.

Overview

Integrity signals

Registry

Crossref · 10.1097/00001648-199509000-00015

Cites

6 of 6 references verified0 citation errors · 0 not checkable

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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?

  • The adjusted phase length distribution is a close fit to that of Baird et al. and has a slightly higher fraction of short luteal phases than that of Lenton et al.

    “The adjusted phase length distribution is a close fit to that of Baird et al. and has a slightly higher fraction of short luteal phases than that of Lenton et al.”
  • Variation in luteal phase lengths has previously been observed in controlled clinical studies.

    “Variation in luteal phase lengths has previously been observed in controlled clinical studies7,24,28”
  • The measure of ovulation used in the study has been validated against the peak urinary excretion of luteinizing hormone and appears to be as precise as methods based on serum luteinizing hormone.

    “We refined this algorithm, validating it against the peak urinary excretion of luteinizing hormone, 13 which corresponds approximately to the day of ovulation.14 Further analysis has suggested that this method is as precise as methods based on the measurement of serum luteinizing hormone.15”

    From Time of Implantation of the Conceptus and Loss of Pregnancy (1999) · cites this paper as [15]

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Metadata

Authors
Baird, D. D., McConnaughey, D. R., Weinberg, C. R., Musey, P. L., Collins, D. C., Kesner, J. S., Knecht, E. A., & Wilcox, A. J.
Affiliations
  • National Institutes of Health (US)
  • Westat (United States) (US)
  • National Institute of Environmental Health Sciences (US)
  • Clark Atlanta University (US)
  • United States Department of Veterans Affairs (US)
  • National Institute for Occupational Safety and Health (US)
Venue
Epidemiology
Published
1995-09
Volume
6
Issue
5
Pages
547-550
ISSN
1044-3983 (ISSN-L)
OpenAlex
W2042462552
Cited by
142
References
6
Citations by year
2026: 4 · 2025: 6 · 2024: 3 · 2023: 3 · 2022: 3 · 2021: 5 · 2020: 9 · 2019: 4 · 2018: 6 · 2017: 8 · 2016: 6 · 2015: 6 · 2014: 5 · 2013: 2 · 2012: 6
FWCI
3.04
Type
journal article
Language
en
Open access
closed
Locations
  • Epidemiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Reproductive Medicine › Ovarian function and disorders
  • Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Reproductive Health and Contraception
Keywords
urinary estrogen metabolites, first morning urine, menstrual cycle, luteal phase length, measurement error, luteinizing hormone, anovulatory cycles
MeSH terms
Adult, Algorithms, Estrogens, Conjugated (USP), Estrone, Evaluation Studies as Topic, Female, Follicular Phase, Humans, Luteinizing Hormone, Menstrual Cycle, Ovulation, Ovulation Detection, Pregnancy, Pregnanediol, Radioimmunoassay, Biomarkers

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