JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
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The National Pressure Ulcer Long-Term Care Study: outcomes of pressure ulcer treatments in long-term care.

OBJECTIVES: To identify resident, wound, and treatment characteristics associated with pressure ulcer (PrU) healing in long-term care residents.

DESIGN: Retrospective cohort study with convenience sampling.

SETTING: Ninety-five long-term care facilities participating in the National Pressure Ulcer Long-Term Care Study throughout the United States.

PARTICIPANTS: Eight hundred eighty-two residents, aged 18 and older, with length of stay of 14 days or longer, who had at least one Stage II to IV PrU.

MEASUREMENTS: Data collected for each resident over a 12-week period included resident characteristics, treatment characteristics, and change in PrU area. Data were obtained from medical records, Minimum Data Set, and other records.

RESULTS: Two multiple regression models, one for each stage grouping (Stage II, Stage III and IV), were completed. The area of Stage II PrU was reduced more with moist (F=21.91, P<.001) than with dry (F=13.41, P<.001) dressings. PrUs cleaned with saline or soap showed less decrease in area (F=12.34, P<.001) than PrUs cleaned with other cleansers such as antiseptic, antibiotic, or commercial cleansers. Change in area of Stage III and IV PrUs was related to sufficient enteral feeding (F=5.23, P=.02), enteral feeding without higher acuity levels (F=3.94, P=.048), size of PrU (very large (F=120.89, P=.001) and large (F=27.82, P=.001)), and type of dressing (moist (F=14.70, P<.001) and dry (F=5.88, P=.02)). Stage III and IV PrUs increased in area when debrided (F=5.97, P=.02). The overall models were significant (Stage III and IV, F=20.30, coefficient of determination (R2)=0.06, P<.001; Stage II, F=40.28, R2=0.13, P<.001) but explained little of the variation in change in PrU area.

CONCLUSION: In this sample of nursing facility residents, use of moist dressings (Stage II, Stage III and IV) and adequate nutritional support (Stage III and IV) are strong predictors of PrU healing.

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