Predicting pressure ulcers: cases missed using a new clinical prediction rule

Area of Science:

• Clinical Nursing Research
• Patient Safety
• Predictive Analytics in Healthcare

Background:

• Hospitalized patients are susceptible to developing pressure ulcers.
• A recent prediction rule can identify most at-risk patients, but up to 30% may still be misclassified.
• Understanding misclassification is crucial for enhancing patient care and preventing hospital-acquired conditions.

Purpose of the Study:

• To describe patients with pressure ulcers incorrectly classified as 'not at risk' by a prediction rule.
• To compare these misclassified patients with those correctly identified as 'not at risk'.
• To identify potential improvements in pressure ulcer risk assessment.

Main Methods:

• A prospective cohort study was conducted in two Dutch hospitals from January 1999 to June 2000.
• 1229 patients admitted to various wards for over 5 days were included and examined weekly.
• Data on prognostic determinants were collected, with outcome defined as pressure ulcer grade 2 or worse.

Main Results:

• Patients who developed pressure ulcers were more likely to experience friction and shear.
• These patients also underwent surgery more frequently and for longer durations.
• Malignant conditions were a more common reason for admission among patients who developed pressure ulcers.

Conclusions:

• No specific patient characteristics clearly differentiated those with pressure ulcers misclassified as 'not at risk' from correctly classified patients.
• Improving the prediction of pressure ulcers using existing clinical information appears difficult.
• Further research may be needed to refine risk assessment tools for pressure ulcers.