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Evid Based Nurs 7:36-40 doi:10.1136/ebn.7.2.36
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Evaluation of studies of causation (aetiology)

Table 4

Patient risk factors associated with pressure ulcer incidence

Risk factor Odds ratio (95% CI) p Value
Homes with a high incidence of pressure ulcers
    Ambulation difficulty 3.3 (2.0 to 5.3) <0.001
    Faecal incontinence 2.5 (1.6 to 4.0) <0.001
    Diabetes mellitus 1.7 (1.2 to 2.5) <0.006
    Difficulty feeding oneself 2.2 (1.5 to 3.3) <0.001
Homes with a low incidence of pressure ulcers
    Male 1.9 (1.2 to 3.6) <0.007
    Ambulation difficulty 3.6 (1.7 to 7.4) <0.001
    Difficulty feeding oneself 3.5 (2.0 to 6.3) <0.001

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