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Discussion| Volume 138, P58-59, April 2020

AUTHOR REPLY

      The relationship between sleep and hypogonadism continues to be elucidated.
      • Deng N
      • Haney NM
      • Kohn TP
      • et al.
      The effect of shift work on urogenital disease: a systematic review.
      Emerging research suggests that the severity of hypogonadal symptoms may be directly impacted by poor sleep quality.
      • Patel P
      • Shiff B
      • Kohn TP
      • et al.
      Impaired sleep is associated with low testosterone in US adult males: results from the National Health and Nutrition Examination Survey.
      Normal sleep architecture can be disrupted in various ways including circadian rhythm disorders, obstructive sleep apnea (OSA), or sleep restriction.

      Wittert G: The relationship between sleep disorders and testosterone in men. Asian J Androl16: 262-265. Available at: http://www.ncbi.nlm.nih.gov/pubmed/24435056.

      The present study builds upon prior work by Pastuszak et al to showcase that impaired sleep as identified by shift work sleep disorder (SWSD), may predict the presence of hypogonadal symptoms among male nonstandard shift workers.
      • Pastuszak AW
      • Moon YM
      • Scovell J
      • et al.
      Poor sleep quality predicts hypogonadal Symptoms and sexual dysfunction in male nonstandard shift workers.
      Our study showed that nonstandard shift workers with SWSD have even worse hypogonadal symptoms and lower testosterone levels than those without SWSD. The reviewer is correct in pointing out that we did not screen for OSA or account for it as a confounder. However, the presence or absence of OSA in a given patient does not alter the diagnosis of SWSD, which was the focus of this work.
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      References

        • Deng N
        • Haney NM
        • Kohn TP
        • et al.
        The effect of shift work on urogenital disease: a systematic review.
        Curr Urol Rep. 2018; 19 (Available at:): 57
        • Patel P
        • Shiff B
        • Kohn TP
        • et al.
        Impaired sleep is associated with low testosterone in US adult males: results from the National Health and Nutrition Examination Survey.
        World J Urol. 2019; 37 (Available at:): 1449-1453
      1. Wittert G: The relationship between sleep disorders and testosterone in men. Asian J Androl16: 262-265. Available at: http://www.ncbi.nlm.nih.gov/pubmed/24435056.

        • Pastuszak AW
        • Moon YM
        • Scovell J
        • et al.
        Poor sleep quality predicts hypogonadal Symptoms and sexual dysfunction in male nonstandard shift workers.
        Urology. 2017; 102 (Available at:): 121-125
        • Cole AP
        • Hanske J
        • Jiang W
        • et al.
        Impact of testosterone replacement therapy on thromboembolism, heart disease and obstructive sleep apnoea in men.
        BJU Int. 2018; 121 (Available at:): 811-818