Preventing Pressure Ulcers: A Multisite Randomized Controlled Trial in Nursing Homes.

Results support turning moderate- and high-risk residents at intervals of 2, 3, or 4 hours when they are cared for on high-density foam replacement mattresses. Turning at 3-hour and at 4-hour intervals is no worse than the current practice of turning every 2 hours. Less frequent turning might increase sleep, improve quality of life, reduce staff injury, and save time for such other activities as feeding, walking, and toileting.