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| Normal Mattress % (n.) | Foam Mattress % (n.) | Alternating pressure Mattress % (n.) | P | |
|---|---|---|---|---|
| Incidence of pressure ulcers (any grade) | 25.6 (23/90) | 28.0 (7/25) | 16.0 (64/401) | 0.044 |
Use of an anti-decubitus mattress and the development of pressure ulcers in patients without positioning devices on the limb (516 patients).
