Letters Section Editor: Jody W. Zylke, MD, Senior Editor.
Author Affiliations: Departments of Family Medicine (Dr Gourlay; firstname.lastname@example.org) and Biostatistics (Dr Preisser), University of North Carolina, Chapel Hill; and Department of Medicine, University of Minnesota, Minneapolis (Dr Ensrud).
To the Editor: Estimation of screening intervals for chronic diseases can be problematic, and no standard approach exists to calculate screening frequency. To investigate bone density testing intervals to detect osteoporosis in older women, we conducted an analysis of data from the longitudinal Study of Osteoporotic Fractures.1 Drs Yu and Finkelstein published a Viewpoint2 that stated concerns about our findings. Their bone density T-score estimates and clinical recommendations warrant further discussion.
Gourlay ML, Preisser JS, Ensrud KE. Bone Density Testing in Older Women. JAMA. 2012;308(14):1428-1429. doi:10.1001/jama.2012.12823