Division of Medical & Surgical Nursing, School of Nursing, Peking University, Beijing, China.
Division of General Surgery, Peking University First Hospital, Beijing, China.
Eur J Cancer Care (Engl). 2022 Nov;31(6):e13743. doi: 10.1111/ecc.13743. Epub 2022 Oct 19.
The study was aimed to develop and evaluate a lymphoedema self-management behaviour questionnaire (LSMBQ) for breast cancer patients.
The initial version of the behaviour questionnaire was developed based on the framework of self-management and the evidence summary of lymphoedema self-management. Two rounds of expert consultation were conducted to validate the questionnaire's content validity. A cross-sectional survey was then conducted in breast wards of two hospitals in China to evaluate the reliability and validity of this scale. Exploratory structural equation model was used to test the construct validity. T-test was used to analyse the known group validity. Structural equation model was applied to verify the relationship between self-efficacy, social support, and lymphoedema self-management behaviour to test the convergent validity. Also, the internal consistency reliability and test-retest reliability were evaluated.
The questionnaire's content validity was satisfactory. There were 22 items included in the LSMBQ for validation and 260 completed the survey. A six-factor structure with good construct validity was identified. The result of t-test verified that patients who knew the risk of lymphoedema and those who received lymphoedema health education had higher scores of lymphoedema self-management behaviours (P < 0.05), indicating that the questionnaire has good known group validity. The fitting results of the structural equation model indicated that the 22-item questionnaire had good convergent validity. Cronbach's alpha coefficients and test-retest reliability for the total questionnaire were 0.910 and 0.875, respectively.
The 22-item LSMBQ appears to have adequate reliability and validity to assess the lymphoedema self-management behaviours for breast cancer patients.
本研究旨在开发和评估一种用于乳腺癌患者的淋巴水肿自我管理行为问卷（LSMBQ）。
行为问卷的初始版本基于自我管理框架和淋巴水肿自我管理证据总结制定。进行了两轮专家咨询以验证问卷的内容效度。然后在中国的两家医院的乳腺病房进行了横断面调查，以评估该量表的信度和效度。采用探索性结构方程模型检验结构效度。采用 t 检验分析已知组的有效性。应用结构方程模型验证自我效能、社会支持与淋巴水肿自我管理行为之间的关系，以检验其收敛效度。同时，还评估了内部一致性信度和重测信度。
问卷的内容效度令人满意。验证时有 22 个项目包含在 LSMBQ 中，共有 260 人完成了调查。确定了具有良好结构效度的六因素结构。t 检验的结果验证了那些了解淋巴水肿风险和接受过淋巴水肿健康教育的患者具有更高的淋巴水肿自我管理行为评分（P<0.05），表明问卷具有良好的已知组有效性。结构方程模型的拟合结果表明，22 项问卷具有良好的收敛效度。总问卷的克朗巴赫α系数和重测信度分别为 0.910 和 0.875。
22 项 LSMBQ 似乎具有足够的信度和效度，可用于评估乳腺癌患者的淋巴水肿自我管理行为。
