Fu Xin, Shen Aomei, Zhang Lichuan, Wang Yujie, Lu Qian
School of Nursing, Peking University, Beijing, China.
Peking University Health Science Centre for Evidence-Based Nursing: A Joanna Briggs Institute Affiliated Group, Peking University, Beijing, China.
Asia Pac J Oncol Nurs. 2024 Apr 22;11(6):100494. doi: 10.1016/j.apjon.2024.100494. eCollection 2024 Jun.
Effective self-management support should be tailored to the individual. To provide personalized and targeted self-management support, a rigorous assessment tool is needed to screen the actual degree of lymphedema self-management support received by breast cancer survivors. This study aims to develop and psychometrically test the Lymphedema Self-Management Support Scale for Breast Cancer Survivors (LSMS-BCs).
This study involves two phases: scale development and psychometric testing. In the scale development phase, preliminary items and domains were identified through a qualitative meta-synthesis, a quantitative systematic review, and reference to previous similar scales. Expert consultation and pilot study were conducted to refine the scale and evaluate the content validity. The psychometric characteristics were tested with 447 participants using item analysis, exploratory factor analysis (EFA), confirmatory factor analysis (CFA), reliability assessments, as well as measurement invariance.
A preliminary 21-item scale with four domains, basic management support, management support for limb volume reduction, role management support, and emotional management support, was constructed in the scale development phase and well supported by EFA and CFA. The scale-level content validity index was 0.983. Cronbach's α coefficient for overall scale and subscales ranged from 0.732 to 0.949. McDonald's ω ranged from 0.848 to 0.955. Excellent known-groups validity, concurrent validity, predictive validity, and measurement invariance were demonstrated.
The LSMS-BCs is psychometrically valid and reliable. It can serve as a valuable tool for assessing and understanding the lymphedema self-management support received by breast cancer survivors.
有效的自我管理支持应因人而异。为了提供个性化且有针对性的自我管理支持，需要一种严格的评估工具来筛查乳腺癌幸存者接受的淋巴水肿自我管理支持的实际程度。本研究旨在开发并对乳腺癌幸存者淋巴水肿自我管理支持量表（LSMS - BCs）进行心理测量学测试。
本研究包括两个阶段：量表开发和心理测量学测试。在量表开发阶段，通过定性元综合、定量系统综述以及参考以往类似量表来确定初步的条目和领域。进行专家咨询和预试验以完善量表并评估内容效度。使用项目分析、探索性因素分析（EFA）、验证性因素分析（CFA）、信度评估以及测量不变性对447名参与者进行心理测量学特征测试。
在量表开发阶段构建了一个包含四个领域（基本管理支持、肢体体积减少管理支持、角色管理支持和情绪管理支持）的初步21条目量表，该量表得到了EFA和CFA的良好支持。量表水平的内容效度指数为0.983。总量表及各分量表的Cronbach's α系数范围为0.732至0.949。McDonald's ω范围为0.848至0.955。显示出优异的已知群体效度、同时效度、预测效度和测量不变性。
LSMS - BCs在心理测量学上是有效且可靠的。它可作为评估和了解乳腺癌幸存者接受的淋巴水肿自我管理支持的有价值工具。
