Editing Infertility: Epidemiology and Etiology (section)

== Epidemiology of Infertility ==

* Prevalence
** Varies depending on definition of infertility, source of data, and population
** '''Prevalence in Canada: ≈11%'''
*** Data from the Infertility component in the 2009–2010 Canadian Community Health Survey
*** Definition of infertility: did not become pregnant after exposure to the risk of conception during the previous 12 months.
**** Risk of conception: did not use any form of birth control within the past 12 months, reported having sexual intercourse in the past 12 months, and reported ever having tried to become pregnant with their current partner.
**** Bushnik, Tracey, et al. "[https://pubmed.ncbi.nlm.nih.gov/22258658/ Estimating the prevalence of infertility in Canada.]" Human reproduction 27.3 (2012): 738-746.

* '''Semen parameters peak after 1 or 2 days of abstinence, then decline.'''
** '''To increase the probability of pregnancy, intercourse every day around the time of ovulation is optimal'''
** '''To assess bulk seminal parameters, a single day of abstinence is optimal'''