Saturday, June 10, 2023

Transgender women are still at risk for prostate cancer

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Transgender women keep their prostates even after gender-affirming surgery, but the extent to which they remain at risk of prostate cancer has been unclear.

Now a first of its kind study led by UC San Francisco has estimated the risk at about 14 cases per 10,000 people.

The study drew on 22 years of data from the Veterans Affairs Health System. Although the sample size was necessarily small, it is still the largest study of its kind. It publishes Saturday, April 29, 2023 in the Journal of the American Medical Association (JAMA) and is timed to the annual meeting of the American Urological Association. “What we know about to date is almost exclusively based on cisgender men,” said the study’s lead author, Farnoosh Nik-Ahd, MD, a urology resident at UCSF. “This is an important first step in reshaping how clinicians think about prostate in women.”

Transgender people often face discrimination and disparities, and there has been a growing acknowledgement of the complexities involved in their .

The study found 155 confirmed transgender women with prostate cancer and stratified them according to whether they had used estrogen: 116 had never used estrogen, 17 had once used estrogen but stopped before they were diagnosed with prostate cancer, and 22 were actively on estrogen.

The median age of diagnosis was 61 years, and 88 percent of the patients were white. Just 8 percent were Black, suggesting possible disparities affecting this group. Black cisgender men are at heightened risk of being diagnosed with and dying from prostate cancer.

The authors found that prostate cancer occurs in transgender women more frequently than published accounts might suggest, with about 14 prostate cancer cases per 10,000 transgender women.

While the numbers were small, they suggest that transgender women taking estrogen may have had delayed diagnoses. The authors also said that lower rates of prostate cancer may have been due to less PSA screening, misinterpretation of PSA levels in patients on gender-affirming hormone therapies, stigma, lack of awareness of prostate cancer risk and the effects of estrogen.

“We still have a lot of work to do to determine optimal prostate cancer screening for on and related treatments,” said co-senior author Matthew R. Cooperberg, MD, MPH, of the UCSF Department of Urology. “This study should be a reminder to clinicians and patients alike that, regardless of gender, people with prostates are at risk for cancer.”

More information:
Farnoosh Nik-Ahd et al, Prostate Cancer in Transgender Women in the Veterans Affairs Health System, 2000-2022, JAMA (2023). DOI: 10.1001/jama.2023.6028

Transgender women are still at risk for prostate cancer (2023, April 29)
retrieved 29 April 2023

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