Tyler R McClintock1, Marie-Therese I Valovska2, Nicollette K Kwon3, Alexander P Cole1,3, Wei Jiang3, Martin N Kathrins1, Naeem Bhojani4, George E Haleblian1, Tracey Koehlmoos5, Adil H Haider3,6, Shehzad Basaria7, Quoc-Dien Trinh8,9. 1. Division of Urology, Brigham and Women's Hospital, Harvard Medical School, 45 Francis St, ASB II-3, Boston, MA, 02115, USA. 2. Geisel School of Medicine at Dartmouth, Hanover, NH, USA. 3. Center for Surgery and Public Health, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. 4. Department of Urology, University of Montreal, Montreal, QC, Canada. 5. Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, MD, USA. 6. Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. 7. Research Program in Men's Health: Aging and Metabolism, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. 8. Division of Urology, Brigham and Women's Hospital, Harvard Medical School, 45 Francis St, ASB II-3, Boston, MA, 02115, USA. trinh.qd@gmail.com. 9. Center for Surgery and Public Health, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. trinh.qd@gmail.com.
Abstract
PURPOSE: To determine whether TRT in men with hypogonadism is associated with an increased risk of urolithiasis. METHODS: We conducted a population-based matched cohort study utilizing data sourced from the Military Health System Data Repository (a large military-based database that includes beneficiaries of the TRICARE program). This included men aged 40-64 years with no prior history of urolithiasis who received continuous TRT for a diagnosis of hypogonadism between 2006 and 2014. Eligible individuals were matched using both demographics and comorbidities to TRICARE enrollees who did not receive TRT. The primary outcome was 2-year absolute risk of a stone-related event, comparing men on TRT to non-TRT controls. RESULTS: There were 26,586 pairs in our cohort. Four hundred and eighty-two stone-related events were observed at 2 years in the non-TRT group versus 659 in the TRT group. Log-rank comparisons showed this to be a statistically significant difference in events between the two groups (p < 0.0001). This difference was observed for topical (p < 0.0001) and injection (p = 0.004) therapy-type subgroups, though not for pellet (p = 0.27). There was no significant difference in stone episodes based on secondary polycythemia diagnosis, which was used as an indirect indicator of higher on-treatment testosterone levels (p = 0.14). CONCLUSION: We observed an increase in 2-year absolute risk of stone events among those on TRT compared to those who did not undergo this hormonal therapy. These findings merit further investigation into the pathophysiologic basis of our observation and consideration by clinicians when determining the risks and benefits of placing patients on TRT.
PURPOSE: To determine whether TRT in men with hypogonadism is associated with an increased risk of urolithiasis. METHODS: We conducted a population-based matched cohort study utilizing data sourced from the Military Health System Data Repository (a large military-based database that includes beneficiaries of the TRICARE program). This included men aged 40-64 years with no prior history of urolithiasis who received continuous TRT for a diagnosis of hypogonadism between 2006 and 2014. Eligible individuals were matched using both demographics and comorbidities to TRICARE enrollees who did not receive TRT. The primary outcome was 2-year absolute risk of a stone-related event, comparing men on TRT to non-TRT controls. RESULTS: There were 26,586 pairs in our cohort. Four hundred and eighty-two stone-related events were observed at 2 years in the non-TRT group versus 659 in the TRT group. Log-rank comparisons showed this to be a statistically significant difference in events between the two groups (p < 0.0001). This difference was observed for topical (p < 0.0001) and injection (p = 0.004) therapy-type subgroups, though not for pellet (p = 0.27). There was no significant difference in stone episodes based on secondary polycythemia diagnosis, which was used as an indirect indicator of higher on-treatment testosterone levels (p = 0.14). CONCLUSION: We observed an increase in 2-year absolute risk of stone events among those on TRT compared to those who did not undergo this hormonal therapy. These findings merit further investigation into the pathophysiologic basis of our observation and consideration by clinicians when determining the risks and benefits of placing patients on TRT.
Entities:
Keywords:
Hypogonadism; Male aging; Testosterone; Urinary calculi; Urolithiasis
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