Subjects: Physics >> General Physics: Statistical and Quantum Mechanics, Quantum Information, etc. submitted time 2022-11-22 Cooperative journals: 《中国全科医学》
Abstract：
Objective:To investigate the epidemiological characteristics of pressure injury in 46 tertiary hospitals in 13 provinces and analyze the predictive role of Braden scale and its six subscales in predicting the risk of pressure injury and hospital- acquired pressure injury. Methods:In total, 46 hospitals were recruited to participate in the cross-sectional survey. A total of 1060 nurses who were trained and qualified adopted convenient sampling, and used consistent survey tools, methods and procedures in the same time. Hospitalized patients with 18 years old and over were included. The skin was examined from head to toes for pressure injury. The Braden scale was used to assess the risk of pressure injury from the six subscales of sensory perception, moist, activity ability, mobility, nutrition ,shear and friction, with a total score of 6-23. The lower the score is, the higher the risk of pressure injury. Statistical software was used to analyze the AUC and its sensitivity, specificity and Youden index of Braden scale and its six subscales for predicting pressure injury and hospital -acquired pressure injury. Results: In total,60555 cases of valid data were obtained, including 32518 males (53.70%) and 28037 females (46.30%), with an average age of 55.88 ± 17.16 years. The total prevalence of pressure injury was 1.67% (n = 1010), of which the prevalence of hospital -acquired pressure injury was 0.74% (n = 448). The prevalence of male was higher than that of female (2.08% vs 1.19%), and the prevalence of pressure injury in ICU and those with 80 years old and over was higher (10.58% and 5.98%). The AUC of Braden Scale for predicting adults pressure injury and hospital -acquired pressure injury were 0.95 and 0.91, the sensitivity was 0.92 and 0.90, the specificity was 0.87 and 0.79, and the Youden index was 0.79 and 0.69, respectively. The cut-off value of Braden scale ≤ 19 predicted the maximum AUC and Youden index (0.83 and 0.51) for the predictive of pressure injury, and the AUC (0.92-0.81) and Youden index (075-0.71) for the predictive of pressure injury with the cut-off value of activity，mobility, friction and shear force. Conclusion: Braden scale is suitable for predicting risk of pressure injury among Chinese adult inpatients in tertiary hospitals. The total score ≤ 19 has a better predictive effect, of which the activity ability, friction and shear force, and mobility subscales have the largest predictive effect. The three subscales can be used to assess and predict the risk of pressure injury in special environments, which can improve efficiency and save time.
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