Volume 3 - Article 5

Daily Fecundability: First Results from a New Data Base

By Bernardo Colombo, Guido Masarotto

Print this page  Send this article to a friend  Twitter

 

 
Date received:19 Jul 2000
Date published:06 Sep 2000
Word count:6889
Keywords:daily fecundability, fertile period, fertility, fertility awareness, natural family planning, Schwartz model
DOI:10.4054/DemRes.2000.3.5
 

Abstract

This multicentre study has produced a database of 7017 menstrual cycles contributed by 881 women. It provides improved knowledge on length and location of the "fertile window" (identified as of up to 12 days duration) and the pattern and level of daily conception probability. The day of ovulation was identified in each cycle from records of basal body temperature and mucus symptoms.
By referencing days of intercourse to the surrogate ovulation markers, estimates of daily fecundability were computed either directly or by the Schwartz model, both for single and multiple acts of intercourse in the fertile window. The relationship between coital pattern and fecundability has been explored. Univariate analysis underlines the significant link with fecundability only of the woman’s reproductive history.

Author's Affiliation

Bernardo Colombo - University of Padua, Italy
Guido Masarotto - University of Padua, Italy [Email]

Most recent similar articles in Demographic Research

» The declining effect of sibling size on children's education in Costa Rica
Volume 31 - Article 48    | Keywords: fertility

» The educational gradient of childlessness and cohort parity progression in 14 low fertility countries
Volume 31 - Article 46    | Keywords: fertility

» Varying association between education and second births in Europe: Comparative analysis based on the EU-SILC data
Volume 31 - Article 27    | Keywords: fertility

» Fertility and the fast-track: Continued childbearing among professionals in Sweden, 1991-2009
Volume 31 - Article 15    | Keywords: fertility

» Value of Children and the social production of welfare
Volume 30 - Article 66    | Keywords: fertility