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Variability In The Phases Of The Menstrual Cycle, Richard Fehring, Mary Schneider, Kathleen Raviele
Variability In The Phases Of The Menstrual Cycle, Richard Fehring, Mary Schneider, Kathleen Raviele
College of Nursing Faculty Research and Publications
Objective: To determine variability in the phases of the menstrual cycle among healthy, regularly cycling women. Design: A prospective descriptive study of a new data set with biological markers to estimate parameters of the menstrual cycles. Participants: One hundred forty one healthy women (mean age 29 years) who monitored 3 to 13 menstrual cycles with an electronic fertility monitor and produced 1,060 usable cycles of data. Measures and Outcomes: Variability in the length of the menstrual cycle and of the follicular, fertile, and luteal phases, and menses. The estimated day of ovulation and end of the fertile phase was the …