Factor Structure of the Brief Pain Inventory-Short Form in African American Older Adults With Osteoarthritis.

IF 1.1 4区医学 Q4 GERIATRICS & GERONTOLOGY

Journal of gerontological nursing Pub Date : 2025-02-01 Epub Date: 2025-01-10 DOI:10.3928/00989134-20250102-01

Jianli Wu, Ann L Horgas, Staja Q Booker

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引用次数: 0

Abstract

Purpose: To evaluate the factor structure of the Brief Pain Inventory-Short Form (BPI-SF) and measurement invariance across two age groups for African American (AA) older adults with osteoarthritis (OA).

Method: Participants were AA older adults aged 50 to 94 years with self-reported OA and chronic pain (N = 110). Cross-sectional data from the BPI-SF were obtained from all participants, and confirmatory factor analysis (CFA) was used to evaluate the factor structure. Measurement invariance across young-old (aged 50 to 69 years) and old-old (aged 70 to 94 years) participants was examined at configural, full metric, and full scalar levels.

Results: CFA revealed that a three-factor model (i.e., pain intensity, activity interference, and affective interference) demonstrated the best fit (χ²/df = 1.595, comparative fit index [CFI] = 0.949, root-mean-square error of approximation = 0.074). The change of CFI between configural and metric invariance was below the cutoff point of 0.01, supporting full metric (i.e., factor loadings) invariance across the two age groups. However, full scalar (i.e., item intercepts) invariance was not demonstrated.

Conclusion: Results support a three-factor structure of the BPI-SF, which is consistent across two age groups for AA older adults with OA. This study provides evidence that the BPI-SF can reliably measure pain intensity and two distinct dimensions of pain interference in this population. [Journal of Gerontological Nursing, 51(2), 13-22.].

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非裔美国老年骨关节炎患者简短疼痛量表的因子结构。

目的：评估非裔美国人（AA）老年骨关节炎（OA）患者简短疼痛量表（BPI-SF）的因素结构和测量不变性。方法：参与者为50 ~ 94岁、自述OA和慢性疼痛的AA老年人（N = 110）。从所有参与者获得BPI-SF的横截面数据，并使用验证性因子分析（CFA）来评估因子结构。在结构、全度量和全标量水平上检查了年轻-老年（50 - 69岁）和老年（70 - 94岁）参与者的测量不变性。结果：CFA结果显示，疼痛强度、活动干扰和情感干扰三因素模型拟合最佳（χ2/df = 1.595，比较拟合指数[CFI] = 0.949，近似均方根误差= 0.074）。CFI在构型不变性和度量不变性之间的变化低于0.01的临界值，支持两个年龄组的完全度量（即因子负荷）不变性。然而，没有证明全标量（即项目拦截）不变性。结论：结果支持bmi - sf的三因素结构，这在两个年龄组AA老年OA患者中是一致的。这项研究提供了证据，证明BPI-SF可以可靠地测量该人群的疼痛强度和疼痛干扰的两个不同维度。老年护理杂志，51(2),13-22。

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来源期刊

Journal of gerontological nursing 医学-护理

CiteScore

2.00

自引率

7.70%

发文量

审稿时长

6-12 weeks

期刊介绍： The Journal of Gerontological Nursing is a monthly, peer-reviewed journal publishing clinically relevant original articles on the practice of gerontological nursing across the continuum of care in a variety of health care settings, for more than 40 years.