Natural family planning and sex selection: Fact or fiction?

Research output: Contribution to journalArticlepeer-review

Abstract

Determining sex of offspring by timing of intercourse has been a subject of intense interest for the lay public and professional community. This metaanalysis of couples practicing natural family planning provides an opportunity to evaluate sex ratios in relation to the timing of conception with several parameters, including basal body temperature shift and peak mucus as markers of ovulation. Data from six studies show a statistically significant lower proportion of male births among conceptions that occur during the most fertile time of the cycle.

Original languageEnglish (US)
Pages (from-to)1982-1984
Number of pages3
JournalAmerican journal of obstetrics and gynecology
Volume165
Issue number6
DOIs
StatePublished - Jan 1 1991

Keywords

  • Natural family planning
  • X-bearing sperm
  • Y-bearing sperm
  • sex selection

ASJC Scopus subject areas

  • Obstetrics and Gynecology

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