对用于腰痛患者的华盛顿大学疼痛相关自我效能感和对疼痛担忧项目库的简短形式进行心理计量学检验。
Psychometric examination of short forms from the University of Washington pain-related self-efficacy and concerns about pain item banks in patients with low back pain.
机构信息
Distinguished Professor, Department of Physical Therapy and Athletic Training, University of Utah, Salt Lake City, Utah, USA.
Assistant Professor, Rehabilitation Science Department, King Saud University, Riyadh, Saudi Arabia.
出版信息
Qual Life Res. 2022 Feb;31(2):621-631. doi: 10.1007/s11136-021-02923-0. Epub 2021 Jun 29.
PURPOSE
This study examined the psychometric properties of custom short forms assessing pain-related self-efficacy and catastrophizing, which are important psychosocial constructs for individuals with pain conditions. Short forms were derived from the University of Washington concerns about pain (UWCAP) and pain-related self-efficacy (UWPRSE) item banks.
METHODS
Participants with low back pain (LBP) in a clinical trial (n = 241) examining nonpharmacologic treatments completed the 8-item UWCAP and 9-item UWPRSE and a numeric pain intensity rating, Oswestry Disability and Fear-Avoidance Beliefs questionnaires at baseline, 1-, 4- and 12-weeks after enrollment. Cronbach's alpha and intraclass correlation coefficients estimated internal consistency and test-retest reliability, respectively. Floor and ceiling effects for the UWCAP and UWPRSE were examined. Concurrent validity was evaluated with univariate correlation coefficients and predictive validity with multivariate regression models. Participants were divided into categories of treatment responsiveness based on a single-item global rating measure, and UWPRSE and UWCAP change scores and standardized effect sizes were calculated in each category.
RESULTS
Both short forms had good internal consistency (α = 0.89-0.90) and test-retest reliability (ICC = 0.77-0.85), without substantial floor or ceiling effects. As expected, the UWCAP was positively correlated, and UWPRSE negatively correlated, with concurrent measures of pain intensity, disability and fear-avoidance beliefs. The UWCAP added to the prediction model for 4-week disability outcomes (β = 0.25, p = 0.008). Responsiveness was supported by the mean change scores and effect sizes across treatment response categories.
CONCLUSION
The UWCAP and UWPRSE short forms demonstrated acceptable psychometric properties, supporting future research on the role of these constructs in the management of persons with LBP.
TRIAL REGISTRATION
Clinicaltrials.gov ID: NCT02860834. Registered on August 16, 2016.
目的
本研究考察了评估疼痛相关自我效能感和灾难化这两个对疼痛患者很重要的心理社会结构的定制简式量表的心理测量学特性。简式量表来源于华盛顿大学疼痛关注量表（UWCAP）和疼痛相关自我效能感量表（UWPRSE）条目库。
方法
参与一项非药物治疗腰痛临床试验的患者（n=241）在基线、入组后 1、4 和 12 周时完成了 8 项 UWCAP 和 9 项 UWPRSE 以及数字疼痛强度评分、Oswestry 残疾问卷和恐惧回避信念问卷。Cronbach's α 系数和组内相关系数分别估计内部一致性和测试-重测信度。考察了 UWCAP 和 UWPRSE 的地板效应和天花板效应。采用单变量相关系数评估了同时效度，采用多元回归模型评估了预测效度。根据一项整体疗效评价的单项指标将患者分为不同的治疗反应类别，并在每个类别中计算 UWPRSE 和 UWCAP 的变化分数和标准化效应量。
结果
两个简式量表都具有良好的内部一致性（α=0.89-0.90）和测试-重测信度（ICC=0.77-0.85），且无明显的地板效应或天花板效应。正如预期的那样，UWCAP 与同时测量的疼痛强度、残疾和恐惧回避信念呈正相关，而 UWPRSE 则呈负相关。UWCAP 增加了 4 周残疾结局的预测模型（β=0.25，p=0.008）。在不同治疗反应类别的平均变化分数和效应量上都支持了反应性。
结论
UWCAP 和 UWPRSE 简式量表表现出可接受的心理测量学特性，支持未来研究这些结构在腰痛患者管理中的作用。
试验注册
Clinicaltrials.gov 注册号：NCT02860834。于 2016 年 8 月 16 日注册。
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