Comparison of the predictive validity of the Braden, Munro and 3S scales in surgical patients.

Aim of the study: This research is a descriptive and cross-sectional study aimed at examining the use of three different scales to assess the risk of pressure injury (PI) in surgical patients.

Materials and methods: This study was conducted between February 1 and July 1, 2022. The study included patients who had planned surgery in general surgery clinic. The sample size was 388 patients. Patients who agreed to participate in the study were asked to fill out the " Introductory Information Form " and perform a risk assessment using the Braden, Munro and 3S Scales. The statistics program IBM SPSS Statistics 25.0 packaged software was used in the analyses of data.

Results: It is evident that the relationship between the scales and the diagnosis of PI, as well as the strength of this relationship, are statistically significant (p < 0.05). The Munro Scale exhibited the highest value of Phi value and validity coefficient c, indicating a stronger association with the diagnosis of PI, thus suggesting its greater effectiveness in discrimination. According to the validity coefficients found, it can be stated that the correct classification percentages for Munro, Braden, and 3S Scales were 91 %, 71 %, and 66 %, respectively.

Conclusion: The findings of this study indicate that both the Braden, Munro, and 3S Scales can be used for PI risk assessment in surgical patients, but the Munro Scale exhibits superior predictive validity compared to the Braden and 3S Scales in terms of overall sensitivity and specificity.