Retrospective Cohort Noninferiority Analysis of Barrier Cream in Preventing Pressure Injuries

Adv Skin Wound Care. 2021 May 1;34(5):255-260. doi: 10.1097/01.ASW.0000741516.67330.4b.

Abstract

Objective: To assess the effectiveness of a dimethicone- and zinc-based barrier cream compared with hyperoxygenated fatty acids in preventing pressure injuries (PIs) in patients at high or very high risk.

Methods: Researchers conducted a retrospective noninferiority study in an inpatient acute care hospital in Spain that included hospitalized patients in nonsurgical departments with impaired mobility.

Results: The study authors reviewed 522 patients in a control group (hyperoxygenated fatty acids) and an experimental group (barrier cream) over a period of 7 days. The incidence of PI was 31% in the control group and 31.1% in the experimental group. The hazard ratio for developing PI was 0.84 (confidence interval, 0.61-1.17; P = .32) in the experimental group compared with the control group, meeting the criteria for noninferiority. The Kaplan-Meier estimator indicated no statistically significant difference between groups (log-rank = 0.654).

Conclusions: Dimethicone- and zinc-based barrier cream was not inferior to hyperoxygenated fatty acids in preventing PIs in hospitalized patients at high or very high risk of developing them during their hospital stay.

MeSH terms

  • Adult
  • Architectural Accessibility / standards*
  • Architectural Accessibility / statistics & numerical data
  • Cohort Studies
  • Equivalence Trials as Topic
  • Female
  • Humans
  • Incidence
  • Kaplan-Meier Estimate
  • Logistic Models
  • Male
  • Pressure Ulcer / drug therapy*
  • Pressure Ulcer / epidemiology
  • Pressure Ulcer / physiopathology
  • Retrospective Studies
  • Skin Cream / standards
  • Skin Cream / therapeutic use*
  • Spain / epidemiology