ArticleAmerican journal of human biology : the official journal of the Human Biology Council2025
Salivary/Serum Progesterone Ratio Differs Between Menstrual Cycle Phases but Not Between Populations: Implications for Health, Reproductive, and Behavioral Research.
Article in American journal of human biology : the official journal of the Human Biology Council, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- Salivary estradiol and progesterone across the menstrual cycle: Association and agreement with serum concentrations.Physiological reports · 2026Article
- Salivary/Serum Progesterone Ratio Differs Between Menstrual Cycle Phases but Not Between Populations: Implications for Health, Reproductive, and Behavioral Research.American journal of human biology : the official journal of the Human Biology Council · 2025Article
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
objectivesMany investigations of human health, behaviors, and adaptations require an indicator of ovarian cycle functioning as a causal, outcome, or confounding variable in the study design and analyses. Because the dynamic fluctuations in cycle hormones can rarely be adequately characterized by a single measurement, but repeated blood sampling can be onerous, salivary free progesterone (P
methodsWe collected mid-follicular and mid-luteal near-concurrent samples of venous blood and saliva from 36 healthy premenopausal Bolivian women. P
resultsIn our study sample of Bolivian women, P
conclusionsHypothesis 1 was supported. Consistent with prior reports for other populations, in these Bolivian women UF was higher and more variable in the follicular than in the luteal phase. The source(s) of phase-associated variation in UF deserves additional study, particularly the dynamic relationship to different conformers of corticosteroid-binding globulin (CBG). Hypothesis 2 was not supported. Paired P
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