Routine testosterone screening of US troops may require extensive follow-on care, study finds

A quarter of troops measured below testosterone thresholds, a study of Army personnel found, with similar results compared to the general U.S. population. According to the research, published Thursday in JAMA , 20% of male soldiers younger than 30 years had testosterone levels less than the threshold established by the American Urological Association of 300 nanograms per deciliter, or ng/dL. Roughly a third of service members — 32.8% — aged 30 and older fell below the threshold. According to the analysis, one-time testosterone testing of troops determined that 100,691 active-duty soldiers had…