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Simple test screens for Osteoporosis in men. (Osteoporosis Screening Tool).
SAN ANTONIO -- A simple formula can identify men who are at low risk of having osteoporosis and should not be considered candidates for a bone-density scan.
The formula, the Osteoporosis Screening Tool (OST), involves subtracting a man's age from his weight in kilograms, and then multiplying the answer by 0.2. The result is then truncated to an integer. If the integer is 4 or greater, a negative result, the man is unlikely to have osteoporosis, with a negative predictive value of about 97%, Dr. Robert A. Adler reported in a poster at the annual meeting of the American Society for Bone and Mineral Research.
If the man's number comes out as 3 or lower, the screen's positive predictive value is about 34%--a risk of osteoporosis that is high enough to warrant doing bone scans of all men with a score this low, said Dr. Adler, chief of endocrinology and metabolism at the McGuire VA Medical Center in Richmond, Va.
The OST is "simple, easy, cheap, and very predictive," he told this newspaper.
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