From: Validation of the Helsinki University Hospital prevent pressure Injury Risk Assessment Tool: a prospective observational study
N = 637
PI risk Classes
PIs (n)
Patients (n)
Relative risk (RR)
95% confidence interval (CI)
Lower
Upper
PPI
Tool
High-risk
2
10
2.771
1.170
4.371
Moderate-risk
148
1.210
-1.524
1.676
Low-risk
6
479