Liu Liang Q, Chapman Sarah, Deegan Rachel, Knight Sarah L, Traynor Michael, Allan Helen T, Gall Angela
Centre for Critical Research in Nursing & Midwifery, Department of Adult, Child and Midwifery, School of Health and Education, Middlesex University, London, UK.
Department of Pharmacy & Pharmacology, University of Bath, UK.
J Tissue Viability. 2021 May;30(2):244-249. doi: 10.1016/j.jtv.2020.05.002. Epub 2020 May 23.
To develop and examine the reliability, and validity of a questionnaire measuring concordance for performing pressure-relief for pressure ulcer (PrU) prevention in people with Spinal Cord Injury (SCI).
Phase I included item development, content and face validity testing. In phase II, the questionnaire was evaluated for preliminary acceptability, reliability and validity among 48 wheelchair users with SCI.
Thirty-seven items were initially explored. Item and factor analysis resulted in a final 26-item questionnaire with four factors reflecting concordance, perceived benefits, perceived negative consequences, and personal practical barriers to performing pressure-relief activities. The internal consistency reliability for four domains were very good (Cronbach's α = 0.75-.89). Pearson correlation coefficient on a test-retest of the same subjects yielded significant correlations in concordance (r = 0.91, p = .005), perceived benefit (r = 0.71, p < .04), perceived negative consequences (r = 0.98, p < .0001), personal barriers (r = 0.93, p= .002). Participants with higher levels of concordance reported a greater amount of pressure-relieving performed. Individuals viewing PrU as a threatening illness were associated with higher scores of concordance and tended to report a greater amount of pressure-relieving performance which provides evidence of criterion related validity.
The new questionnaire demonstrated good preliminary reliability and validity in people with SCI. Further evaluation is necessary to confirm these findings using larger samples with follow-up data for predictive validity. Such a questionnaire could be used by clinicians to identify high risk of patients and to design individualised education programme for PrU prevention.
开发并检验一份用于测量脊髓损伤（SCI）患者预防压疮减压行为一致性的问卷的信度和效度。
第一阶段包括项目开发、内容及表面效度测试。第二阶段，对48名SCI轮椅使用者进行问卷的初步可接受性、信度和效度评估。
最初探索了37个项目。项目和因子分析得出一份最终的26项问卷，包含四个因子，反映了减压行为的一致性、感知益处、感知负面后果以及个人实际阻碍。四个领域的内部一致性信度非常好（克朗巴哈α系数=0.75 - 0.89）。同一受试者重测时的皮尔逊相关系数在一致性方面具有显著相关性（r = 0.91，p = 0.005），感知益处方面（r = 0.71，p < 0.04），感知负面后果方面（r = 0.98，p < 0.0001），个人阻碍方面（r = 0.93，p = 0.002）。一致性水平较高的参与者报告的减压行为更多。将压疮视为威胁性疾病的个体与更高的一致性得分相关，并且倾向于报告更多的减压行为，这提供了与标准相关效度的证据。
新问卷在SCI患者中显示出良好的初步信度和效度。需要进一步评估以使用更大样本及随访数据来确认这些发现，以验证预测效度。这样的问卷可被临床医生用于识别患者的高风险情况，并设计针对压疮预防的个性化教育方案。
