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To the Editor: Dr Lyder¹ cited an article by Knox et al² to assert that to prevent pressure ulcers, "A 2-hour repositioning schedule should be the minimum interval for patients at risk." This statement could be interpreted to mean that repositioning patients more frequently than every 2 hours is an unnecessary burden on an already stressed hospital staff. I suggest that these data more appropriately support a maximum interval of 2 hours between position changes, that is, patients ideally should be repositioned more frequently than this interval, but at least every 2 hours.

Gary N. Fox, MD
Toledo, Ohio

1. Lyder CH. Pressure ulcer prevention and management. JAMA. 2003;289:223-226. FREE FULL TEXT 2. Knox DM, Anderson TM, Anderson PS. Effects of different turn intervals on skin of healthy older adults. Adv Wound Care. 1994;7:48-52, 54-56. PUBMED

Letters Section Editor: Stephen J. Lurie, MD, PhD, Senior Editor.

JAMA. 2003;289:2210.

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