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Evaluation of menstrual cycle-related changes in 85 clinical laboratory analytes.

Abstract：

OBJECTIVE:The menstrual cycle-related changes in clinical laboratory values were analysed by use of data obtained in the Asian multicentre study aimed at derivation of common reference intervals for 85 major clinical laboratory tests. METHODS:Among 1876 healthy female volunteers, 893 had regular menstruation. They were classified into five groups according to dates between sample collection and the start of the last menstrual cycle: early follicular phase (1-6 days), late follicular phase (7-12 days), ovulatory phase (13-16 days), early luteal phase (17-22 days), and late luteal phase (23-31 days). Multiple linear regression analysis was performed to evaluate the menstrual cycle-related changes in test results. The magnitude was expressed as a standard deviation ratio of between-phase standard deviation to between-individual standard deviation based on nested ANOVA. RESULTS:Aside from obvious changes for four sex hormones (oestradiol, progesterone, follicle-stimulating hormone, and luteinizing hormone), we observed statistically significant menstrual cycle-related changes in the following tests (standard deviation ratio >0.15): Na, Cl, creatine kinase, C-reactive protein, serum amyloid A, carbohydrate antigen 125, and parathyroid hormone were higher during the early follicular phase, while insulin, total cholesterol, and white blood cell were higher during the luteal phase. Significant associations of those test items with the four sex hormones were revealed. CONCLUSIONS:The menstrual cycle-related changes in laboratory test results were revealed in some commonly tested items other than sex hormones. The findings are of interest in understanding female physiology in relation to hormonal changes, but the magnitude of changes is rather small and not very relevant in interpreting test results.

journal_name

Ann Clin Biochem

journal_title

Annals of clinical biochemistry

authors

Masuda S,Ichihara K,Yamanishi H,Hirano Y,Tanaka Y,Kamisako T,Scientific Committee for Asia-Pasific Federation of Clinical Biochemistry.

doi

10.1177/0004563215617212

subject

Has Abstract

pub_date

2016-05-01 00:00:00

pages

365-76

issue

Pt 3

eissn

0004-5632

issn

1758-1001

pii

0004563215617212

journal_volume

pub_type

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Evaluation of menstrual cycle-related changes in 85 clinical laboratory analytes.