Occurrence and Predictors of Pressure Sores in the National Health and Nutrition Examination Survey Follow‐up

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Abstract
The occurrence of pressure sores during a follow-up period of approximately 10 years in documented for a US nationwide cohort aged 55 to 75 years at baseline. Using data from the first National Health and Nutrition Examination Survey (NHANES I) epidemiologic Follow-up Study, those who developed pressure sores were identified through death certificates, hospital discharge summaries and self-report or proxy-report. During the follow-up period, pressure sores were identified in 113 of the 5,193 respondents (2.2%) for whom follow-up information was available. Incidence over the follow-up period was 1.7% for those aged 55 to 69 at baseline and rose to 3.3% for those 70 to 75 years old. Risk factors for pressure sore development were evaluated using data collected in NHANES I at baseline. Those with identified pressure sores were compared with the remainder of their cohort and also with a control group matched on age and length of longest hospitalization or nursing home admission. Significantly increased risk for pressure sore development was found for those who at baseline were current smokers, reported being relatively inactive, had poor self-assessed health status and who were found on physician''s exam to have dry or scaling skin. Neurologic abnormality on the physician''s exam and anemia at baseline were also associated with increased risk of pressure sores, although these associations were of borderline statistical significance.

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