title: Oocyte and sperm donors' opinions on the acceptable number of offspring.
abstract: OBJECTIVE
  To investigate opinions on the acceptable number of donation offspring in a national cohort of oocyte and sperm donors.
  
  
  METHODS
  A prospective follow-up study on a national cohort of gamete donors.
  
  
  METHODS
  Sweden.
  
  
  METHODS
  Study-specific questionnaire.
  
  
  METHODS
  Opinion on the acceptable number of offspring from one donor.
  
  
  RESULTS
  About half of both oocyte and sperm donors expressed an opinion that the number of offspring from one donor should be limited to between one and 10, and many donors reported having no firm opinion. When controlling for age, educational level, marital status and biological children, oocyte donors were four times more likely than sperm donors to support an upper limit of five offspring. For many sperm and oocyte donors the number of offspring resulting from their donations was unknown (43.2% oocyte, 47.1% sperm).
  
  
  CONCLUSIONS
  Oocyte donors have more restrictive opinions compared with sperm donors on the acceptable number of offspring from one donor. Donors perform a very humanitarian and societal act when donating their gametes. In the ambition to have safe and trustworthy clinics we need to have well known regulations to be able to recruit donors in the future.
authors.affiliation: Obstetrics and Gynecology, Department of Clinical and Experimental Medicine, Faculty of Health Sciences, Linköping University, Linköping, Sweden.
authors.forename: Gunilla
authors.initials: G
authors.lastname: Sydsjö
authors.forename: Claudia
authors.initials: C
authors.lastname: Lampic
authors.forename: Marie
authors.initials: M
authors.lastname: Bladh
authors.forename: Agneta Skoog
authors.initials: AS
authors.lastname: Svanberg
mesh_terms: D001294:Attitude to Health; D015331:Cohort Studies; D005191:Family Characteristics; D005260:Female; D006801:Humans; D016015:Logistic Models; D008137:Longitudinal Studies; D008297:Male; D027724:Reproductive Techniques, Assisted / Q000941:ethics / Q000331:legislation & jurisprudence / Q000639:trends; D011795:Surveys and Questionnaires; D013548:Sweden; D014019:Tissue Donors; D009927:Tissue and Organ Procurement
keywords: Attitude; offspring; oocyte donor; sperm donor