Geographical Differences in Demographics and Fertility Histories of Men Presenting for Infertility Evaluation Between the United States and Canada: Results from the Andrology Research Consortium

    September 2021 in “ Fertility and Sterility ”
    Kian Asanad, Keith Jarvi, Katherine Lajkosz, J. G. Smith, Susan Lau, Kirk C. Lo, Ethan D. Grober, Mary K. Samplaski
    Image of study
    TLDR American men seeking infertility evaluation are generally older, more obese, have longer infertility duration, and different lifestyle habits compared to Canadian men.
    The study surveyed 6,462 men from the United States (10%) and Canada (90%) to compare their demographics, clinical characteristics, and fertility histories. The mean age was 36.6 years. The mean duration of infertility was significantly higher in US men (4.5 years) compared to Canadian men (3.6 years). More men in the US were obese (63% vs. 26%). American men were more commonly self-referred (17% vs. 1%) and less frequently referred by a reproductive endocrinologist (54% vs. 68%) to a reproductive urologist compared to men in Canada. American men also less frequently had a semen analysis at the time of presentation (80% vs. 88%). Rates of assisted reproductive technology use were significantly different between the US and Canada. Significant differences were found in smoking history (10% vs. 17%), alcohol use (88% vs. 79%), and marijuana use (9% vs. 18%) amongst men in US and Canada, respectively. Finasteride (3% vs. 0%) and testosterone usage (4% vs. 1%) were more common among US men versus Canadians. The study concluded that American men are older and more obese compared to those in Canada, have a longer mean duration of infertility, and different modifiable lifestyle factors.
    Discuss this study in the Community →

    Related Community Posts Join

    6 / 1000+ results

      community Dutasteride causing us to have… girl babies?

      in Finasteride/Dutasteride  26 upvotes 1 year ago
      User Kylo313 used dutasteride for 20 years and had two daughters, questioning if dutasteride affects the likelihood of having male vs female children. Replies mostly request hairline photos and discuss anecdotal experiences, with some suggesting correlation doesn't imply causation and that gender determination isn't affected by dutasteride.

      community people going from fin to dut was it worth it?

      in Is this regrowth?  16 upvotes 7 months ago
      People discussing their experiences with hair loss treatments found that switching from finasteride (Fin) to dutasteride (Dut) often resulted in improved hair thickness and health, despite some experiencing side effects or shedding phases. Some users switched due to diminishing results with Fin, while others were curious about the potential for better outcomes with Dut.

      community Andrew Schulz stated he had been using a ‘’hair pill’’ for 15 years and it may have caused him infertility

      in Satire  134 upvotes 1 year ago
      The conversation discusses the potential link between hair loss treatment pills, specifically finasteride, and infertility. Users share their experiences and opinions, with some suggesting that finasteride can temporarily lower sperm count, while others argue that other factors like age and lifestyle could also contribute to infertility.

      community Why is Kevin Mann (Haircafe) Hated?

      in Chat  62 upvotes 1 year ago
      Hair loss treatments, including microneedling, minoxidil, finasteride and RU58841; the efficacy of these treatments; criticisms of Kevin Mann's content related to his selective data presentation and biases towards certain treatments; and other topics such as DHT being labeled a "trash hormone" and critiques of other hairloss YouTubers.

      community People who tolerate dut better than fin?

      in Finasteride/Dutasteride  32 upvotes 2 months ago
      Dutasteride may have fewer side effects than finasteride, with some users experiencing better hair maintenance. Experiences vary, with some preferring dutasteride for fewer side effects, while others see no significant hair improvement.

    Similar Research

    5 / 1000+ results