Normal variation in the length of the luteal phase of the menstrual cycle: identification of the short luteal phase

Lenton EA; Landgren BM; Sexton L

doi:10.1111/j.1471-0528.1984.tb04831.x

Menstrual Cycle Cycle Physiology

Normal variation in the length of the luteal phase of the menstrual cycle: identification of the short luteal phase

Lenton EA, Landgren BM, Sexton L

Published July 1984 British Journal of Obstetrics and Gynaecology, 91(7), 685-689

DOI 10.1111/j.1471-0528.1984.tb04831.x PMID 6743610

Abstract

Normal probability plots were used to assess the homogeneity of a population of 327 luteal phases from apparently ovulatory menstrual cycles. The length of the luteal phase was defined as the interval (in days) following but not including, the luteinizing hormone peak, up to and including the day before onset of menstruation. A small sub-set of the population consisted of cycles with abnormally short luteal phases but the majority of the data followed a normal frequency distribution which gave a mean (+/- SD) for normal luteal phase length of 14.13 (+/- 1.41) days. It was estimated that all cycles with a luteal phase less than or equal to 9 days were abnormal, and that 74%, 22% and 2% respectively of cycles with luteal phases of 10, 11 and 12 days were also abnormal. The total incidence of short luteal phases defined as above was 5.2%.

Topics

Menstrual Cycle › Cycle Physiology › Luteal Phase · Reproductive Endocrinology › Luteal Phase › Luteal Phase Deficiency · Infertility › Luteal Phase Defect › Diagnosis

PMID 6743610 6743610 DOI 10.1111/j.1471-0528.1984.tb04831.x 10.1111/j.1471-0528.1984.tb04831.x Lenton et al. 1984, Lenton 1984

Keywords

Adolescent, Adult, Aging, Female, Humans, Luteal Phase, Luteinizing Hormone/blood, Menstruation, Middle Aged, Probability, Reference Values, Time Factors, Luteinizing Hormone

Normal variation in the length of the luteal phase of the menstrual cycle: identification of the short luteal phase

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