The distribution of events in the human menstrual cycle
Udry, J.R.; Morris, N.M.
Journal of Reproduction and Fertility 51(2): 419-425
1977
ISSN/ISBN: 0022-4251 PMID: 592294 DOI: 10.1530/jrf.0.0510419Document Number: 435590
Daily reports of 85 married couples concerning their sexual behaviour for about 3 menstrual cycles per couple were organized according to menstrual events by using six techniques of aggregation. While there were some similarities among the different displays, including an apparent peak about 6 days before mid-cycle, different methods of aggregation produce widely different frequency curves. It is concluded that there is no single method of display of events of the menstrual cycle which will fit all investigations.