1.Edsberg LE, Black JM, Goldberg M, McNichol L, Moore L, Sieggreen M: Revised National Pressure Ulcer Advisory Panel pressure injury staging system: revised pressure injury staging system. Journal of Wound, Ostomy, and Continence Nursing 2016, 43(6):585.
2.Haesler E: National pressure ulcer advisory panel, european pressure ulcer advisory panel and pan pacific pressure injury alliance. Prevention and treatment of pressure ulcers: quick reference guide[Internet] 2014.
3.etal. RM: Australian council on healthcare standards. Primary Intention. 2005, 13: 104–117.
4.Gorecki C, Brown JM, Nelson EA, Briggs M, Schoonhoven L, Dealey C, Defloor T, Nixon J, group EQoLPUP: Impact of pressure ulcers on quality of life in older patients: a systematic review. Journal of the American Geriatrics Society 2009, 57(7):1175–1183.
5.Kuptniratsaikul V, Kovindha A, Suethanapornkul S, Manimmanakorn N, Archongka Y: Complications during the rehabilitation period in Thai patients with stroke: a multicenter prospective study. American journal of physical medicine & rehabilitation 2009, 88(2):92–99.
6.Capon A, Pavoni N, Mastromattei A, Di Lallo D: Pressure ulcer risk in long‐term units: prevalence and associated factors. Journal of advanced nursing 2007, 58(3):263–272.
7.Moore Z, Price P: Nurses’ attitudes, behaviours and perceived barriers towards pressure ulcer prevention. Journal of clinical nursing 2004, 13(8):942–951.
8.Spetz J, Brown DS, Aydin C, Donaldson N: The value of reducing hospital-acquired pressure ulcer prevalence: an illustrative analysis. Journal of Nursing Administration 2013, 43(4):235–241.
9.Oot-Giromini B, Bidwell FC, Heller NB, Parks ML, Prebish EM, Wicks P, Williams PM: Pressure ulcer prevention versus treatment, comparative product cost study. Advances in Skin & Wound Care 1989, 2(3):52–55.
10.Bennett G, Dealey C, Posnett J: The cost of pressure ulcers in the UK. Age and ageing 2004, 33(3):230–235.
11.Al Mutairi KB, Hendrie D: Global incidence and prevalence of pressure injuries in public hospitals: A systematic review. Wound Medicine 2018, 22:23–31.
12.Tubaishat A, Papanikolaou P, Anthony D, Habiballah L: Pressure ulcers prevalence in the acute care setting: a systematic review, 2000–2015. Clinical nursing research 2018, 27(6):643–659.
13.Liu P, Shen W-Q, Chen H-L: The Incidence of Pressure Ulcers in the Emergency Department: A Metaanalysis. In.; 2017.
14.Baharestani MM, Black JM, Carville K, Clark M, Cuddigan JE, Dealey C, Defloor T, Harding KG, Lahmann NA, Lubbers MJ: Dilemmas in measuring and using pressure ulcer prevalence and incidence: an international consensus. International wound journal 2009, 6(2):97–104.
15.Nguyen K-H, Chaboyer W, Whitty JA: Pressure injury in Australian public hospitals: a cost-of-illness study. Australian Health Review 2015, 39(3):329–336.
16.Gunningberg L, Stotts NA, Idvall E: Hospital‐acquired pressure ulcers in two Swedish County Councils: cross‐sectional data as the foundation for future quality improvement. International wound journal 2011, 8(5):465–473.
17.Bredesen IM, Bjøro K, Gunningberg L, Hofoss D: The prevalence, prevention and multilevel variance of pressure ulcers in Norwegian hospitals: a cross-sectional study. International journal of nursing studies 2015, 52(1):149–156.
18.Melleiro MM, Tronchin DMR, Baptista CMC, Braga AT, Paulino A, Kurcgant P: Pressure ulcers prevalence indicators and patient falls incidence in teaching hospitals in the city of São Paulo. Revista da Escola de Enfermagem da USP 2015, 49(SPE2):55–59.
19.Jiang Q, Li X, Qu X, Liu Y, Zhang L, Su C, Guo X, Chen Y, Zhu Y, Jia J: The incidence, risk factors and characteristics of pressure ulcers in hospitalized patients in China. International journal of clinical and experimental pathology 2014, 7(5):2587.
20.Biçer E, Güçlüel Y, Türker M, Kepiçoglu N, Sekerci Y, Say A: Pressure Ulcer Prevalence, Incidence, Risk, Clinical Features, and Outcomes Among Patients in a Turkish Hospital: A Cross-sectional, Retrospective Study. Wound management & prevention 2019, 65(2):20–28.
21.Strazzieri‐Pulido KC, S. González CV, Nogueira PC, Padilha KG, G. Santos VL: Pressure injuries in critical patients: Incidence, patient‐associated factors, and nursing workload. Journal of nursing management 2019, 27(2):301–310.
22.Asiyanbi G, Adekola O, Desalu I: A Retrospective study of Pressure ulcers in critically ill patients in a Sub-Saharan Tertiary Centre. African Journal of Anaesthesia and Intensive Care 2014, 14(2).
23.Adegoke B, Odole A, Akindele L, Akinpelu A: Pressure ulcer prevalence among hospitalised adults in university hospitals in South-west Nigeria. Wound Practice & Research: Journal of the Australian Wound Management Association 2013, 21(3):128.
24.Ghali H, Rejeb B, Chelly S, Cheikh AB, Khefacha S, Latiri H: Incidence and risk factors of pressure ulcers in a Tunisian University Hospital. Revue d’Épidémiologie et de Santé Publique 2018, 66:S340.
25.Shahin ES, Dassen T, Halfens RJ: Incidence, prevention and treatment of pressure ulcers in intensive care patients: a longitudinal study. International journal of nursing studies 2009, 46(4):413–421.
26.Lindgren M, Unosson M, Fredrikson M, Ek AC: Immobility–a major risk factor for development of pressure ulcers among adult hospitalized patients: a prospective study. Scandinavian journal of caring sciences 2004, 18(1):57–64.
27.Børsting TE, Tvedt CR, Skogestad IJ, Granheim TI, Gay CL, Lerdal A: Prevalence of pressure ulcer and associated risk factors in middle‐and older‐aged medical inpatients in Norway. Journal of clinical nursing 2018, 27(3–4):e535-e543.
28.Suttipong C, Sindhu S: Predicting factors of pressure ulcers in older Thai stroke patients living in urban communities. Journal of clinical nursing 2012, 21(3‐4):372–379.
29.Sayar S, Turgut S, Doğan H, Ekici A, Yurtsever S, Demirkan F, Doruk N, Taşdelen B: Incidence of pressure ulcers in intensive care unit patients at risk according to the Waterlow scale and factors influencing the development of pressure ulcers. Journal of Clinical Nursing 2009, 18(5):765–774.
30.Gedamu H, Hailu M, Amano A: Prevalence and associated factors of pressure ulcer among hospitalized patients at Felegehiwot referral hospital, Bahir Dar, Ethiopia. Advances in Nursing 2014, 2014.
31.Pokorná A, Benešová K, Jarkovský Jí, Mužík J, Beeckman D: Pressure Injuries in Inpatient Care Facilities in the Czech Republic. Journal of Wound, Ostomy and Continence Nursing 2017, 44(4):331–335.
32.Zhao G, Hiltabidel E, Liu Y, Chen L, Liao Y: A cross-sectional descriptive study of pressure ulcer prevalence in a teaching hospital in China. Ostomy/wound management 2010, 56(2):38.
33.Shahin ES, Dassen T, Halfens RJ: Pressure ulcer prevalence in intensive care patients: a cross‐sectional study. Journal of evaluation in clinical practice 2008, 14(4):563–568.
34.Ebrahim J, Deribe B, Biru W, Feleke T: Prevalence and Factors Associated with Pressure Ulcer among Patients Admitted in Hawassa University Referral Hospital, South Ethiopia. J Health Care Prev 2018, 1(105):2.
35.Beeckman D, Van Lancker A, Van Hecke A, Verhaeghe S: A systematic review and meta‐analysis of incontinence‐associated dermatitis, incontinence, and moisture as risk factors for pressure ulcer development. Research in nursing & health 2014, 37(3):204–218.
36.Sving E, Idvall E, Högberg H, Gunningberg L: Factors contributing to evidence-based pressure ulcer prevention. A cross-sectional study. International journal of nursing studies 2014, 51(5):717–725.
37.Ben FM, Ben KJ, Khalfallah M, Jarraya D, Jarraya H, Ouahchi Z, Nouira R, Dziri C: Prevalence and risk factors of pressure ulcers in a Tunisian hospital. La Tunisie medicale 2017, 95(7):494–499.
38.Assefa T, Mamo F, Shiferaw D: Prevalence of Bed Sore and its associated Factors among Patients admitted at Jimma University Medical Center, Jimma Zone, Southwestern Ethiopia, 2017 Cross-sectional study. 2017.
39.Skogestad IJ, Martinsen L, Børsting TE, Granheim TI, Ludvigsen ES, Gay CL, Lerdal A: Supplementing the Braden scale for pressure ulcer risk among medical inpatients: the contribution of self‐reported symptoms and standard laboratory tests. Journal of clinical nursing 2017, 26(1–2):202–214.
40.Mengisitie BL: Prevalence and Associated Factors of Pressure Ulcer among Hospitalized Adults at Debre Markos Referral Hospital, East Gojjam Zone, Ethiopia,2016. gray literature found from addis ababa university website 2016.
41.Lindgren M, Unosson M, Krantz AM, Ek AC: A risk assessment scale for the prediction of pressure sore development: reliability and validity. Journal of advanced nursing 2002, 38(2):190–199.
42.VanGilder C, MacFarlane GD, Meyer S: Results of nine international pressure ulcer prevalence surveys: 1989 to 2005. Ostomy Wound Management 2008, 54(2):40.
43.Pancorbo‐Hidalgo PL, Garcia‐Fernandez FP, Lopez‐Medina IM, Alvarez‐Nieto C: Risk assessment scales for pressure ulcer prevention: a systematic review. Journal of advanced nursing 2006, 54(1):94–110.
44.Hommel A, Santy-Tomlinson J: Pressure Injury Prevention and Wound Management. In: Fragility Fracture Nursing. edn.: Springer; 2018: 85–94.
45.Liberati A, Altman DG, Tetzlaff J, Mulrow C, Gøtzsche PC, Ioannidis JP, Clarke M, Devereaux PJ, Kleijnen J, Moher D: The PRISMA statement for reporting systematic reviews and meta-analyses of studies that evaluate health care interventions: explanation and elaboration. PLoS medicine 2009, 6(7):e1000100.
46.Black J, Baharestani MM, Cuddigan J, Dorner B, Edsberg L, Langemo D, Posthauer ME, Ratliff C, Taler G: National Pressure Ulcer Advisory Panel’s updated pressure ulcer staging system. Advances in skin & wound care 2007, 20(5):269–274.
47.Shea BJ, Reeves BC, Wells G, Thuku M, Hamel C, Moran J, Moher D, Tugwell P, Welch V, Kristjansson E: AMSTAR 2: a critical appraisal tool for systematic reviews that include randomised or non-randomised studies of healthcare interventions, or both. Bmj 2017, 358:j4008.
48.StataCorp L: Stata statistical software (version release 14). College Station, TX: Author 2015.
49.Borenstein M, Hedges LV, Higgins JP, Rothstein HR: Introduction to meta-analysis: John Wiley & Sons; 2011.
50.Higgins JP, Thompson SG, Deeks JJ, Altman DG: Measuring inconsistency in meta-analyses. Bmj 2003, 327(7414):557–560.
51.Begum F, Ghosh D, Tseng GC, Feingold E: Comprehensive literature review and statistical considerations for GWAS meta-analysis. Nucleic acids research 2012, 40(9):3777–3784.
52.Egger M, Davey-Smith G, Altman D: Systematic reviews in health care: meta-analysis in context: John Wiley & Sons; 2008.
53.Rücker G, Schwarzer G, Carpenter J: Arcsine test for publication bias in meta‐analyses with binary outcomes. Statistics in medicine 2008, 27(5):746–763.
54.Cummings P: The relative merits of risk ratios and odds ratios. Archives of pediatrics & adolescent medicine 2009, 163(5):438–445.
55.Bereded DT, Salih MH, Abebe AE: Prevalence and risk factors of pressure ulcer in hospitalized adult patients; a single center study from Ethiopia. BMC research notes 2018, 11(1):847.
56.Belachew T: Prevalence and Associated Factors of Pressure Ulcer among Adult Inpatients in Wolaita Sodo University Teaching Hospital, Southern Ethiopia. Prevalence 2016, 6(11).
57.Feven T: Magnitude and Factors Affecting the Development of Pressure Ulcer Among Bedridden Patients at Public Hospitals of Harari Regional State. Haramaya University; 2015.