NSG 502 Research – Week 10
The PICOT question
In hospitalized patients with limited mobility (P), how does the use of alternating pressure air mattresses (I) compared to no intervention (C) affect the rates of pressure ulcers (O) within six months (T)?
Discussion
Various statistical methods of analysis will be used in this study where appropriate. Descriptive statistics will be used in the analysis of the results of this project. Descriptive statistics include numbers, percentages, mean, median, mode, standard deviation (SD), and variance (Ezeamuzie et al., 2019). These statistical methods can be used to analyze variables such as age, gender, new infections, and increase or decrease in incidences before and after the intervention among others. Descriptive statistics are used to describe the characteristics or features of a dataset (Ezeamuzie et al., 2019). Using distribution, data may be presented as a number list, table, or graphically.
The comparison of proportions will be done using the chi-squared test and the length of stay (LOS) in the hospital by the Wilcoxon rank-sum test. The primary interest of the researcher is to analyze the influence alternating pressure air mattresses have on the incidence of pressure ulcers (Ahtiala et al., 2020). Statistical evaluation of the mattress effect will be based on survival analysis and Cox proportional hazards model, a regression model, that delivers a direct comparison of the efficacy of different support surfaces (Ahtiala et al., 2020). The duration of follow-up is until the development of the first PU, death, or change of mattress. However, the project duration is six months overall.
References
Ahtiala, M., Kivimäki, R., Laitio, R., & Soppi, E. (2020). Effect of mattress deployment on pressure ulcer development: A real-world observational cohort experience. Wounds International, 11(1), 0-7. https://www.directhealthcaregroup.com/app/uploads/effect-of-mattress-deployment-on-pressure-ulcer-development-a-realworld-observational-cohort-experience-1.pdf
Ezeamuzie, O., Darian, V., Katiyar, U., & Siddiqui, A. (2019). Intraoperative use of low-profile alternating pressure mattress for prevention of hospital-acquired pressure injury. Perioperative Care and Operating Room Management, 17, 100080. https://doi.org/10.1016/j.pcorm.2019.10000
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