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Home > About > Quality & Safety > Hospital-Acquired Pressure Ulcers (HAPU)

Hospital-Acquired Pressure Ulcers (HAPU)

Pressure ulcers — also called bedsores or pressure sores — are injuries to the skin and underlying tissue caused by prolonged pressure on the skin.

They most often develop on skin that covers bony areas of the body, including heels, ankles, hips and tailbones.

At UVA, we have identified best practices for preventing pressure ulcers, including making sure patients move more frequently. We’ve made these steps part of our “standard work,” which means consistently following them with every patient.

We compare ourselves to the National Database of Nursing Quality Indicators® (NDNQI), a Press Ganey database that measures HAPU at more than 1,100 hospitals in the United States.

Specifically, NDNQI divides the number of patients with pressure ulcers by the total number of patients in the hospital.

This count is taken one day every three months. A lower number is better.


Stage II and higher pressure ulcers observed among surveyed patients. A lower number is better.

Prevalence Rate = The number of patients with a pressure ulcer divided by the number of patients surveyed.

Survey completed one day per quarter. Data as of June 30, 2017.

About the benchmark data: National Database of Nursing Quality Indicators, a Press Ganey database of over 1,100 facilities in the United States, is used as the benchmark to monitor performance.

How We Measure Up

The resources below compare quality indicators at different hospitals across the country.