title: Frequency of the male infertility evaluation: data from the national survey of family growth.
abstract: OBJECTIVE
  An estimated 7 million American couples per year seek infertility care in the United States. A male factor contributes to 50% of cases but it is unclear what proportion of infertile couples undergoes male evaluation.
  
  
  METHODS
  We analyzed data from cycles 5 to 7 of the National Survey of Family Growth performed by the Centers for Disease Control to determine the frequency of a male infertility evaluation, and associated reproductive and demographic factors.
  
  
  RESULTS
  A total of 25,846 women and 11,067 men were surveyed. Male evaluation was not completed in 18% of couples when the male partner was asked vs 27% when female partners were asked. This corresponds to approximately 370,000 to 860,000 men in the population who were not evaluated at the time of infertility evaluation. Longer infertility duration and white race were associated with increased odds of male infertility evaluation. The male and female samples showed no change in the receipt of male examination with time.
  
  
  CONCLUSIONS
  Many men from infertile couples do not undergo male evaluation in the United States. Given the potential implications to reproductive goals and male health, further examination of this pattern is warranted.
authors.affiliation: Department of Urology, Stanford University School of Medicine, Stanford, California 94305-5118, USA. eisenberg@stanford.edu
authors.forename: Michael L
authors.initials: ML
authors.lastname: Eisenberg
authors.forename: Ruth B
authors.initials: RB
authors.lastname: Lathi
authors.forename: Valerie L
authors.initials: VL
authors.lastname: Baker
authors.forename: Lynn M
authors.initials: LM
authors.lastname: Westphal
authors.forename: Amin A
authors.initials: AA
authors.lastname: Milki
authors.forename: Ajay K
authors.initials: AK
authors.lastname: Nangia
mesh_terms: D000328:Adult; D004522:Educational Status; D005191:Family Characteristics; D005260:Female; D006801:Humans; D015994:Incidence; D007248:Infertility, Male / Q000453:epidemiology*; D008297:Male; D011159:Population Surveillance / Q000379:methods*; D012098:Reproduction; D012959:Socioeconomic Factors; D014481:United States / Q000453:epidemiology