Department of Dermatology, Erasmus MC, PO Box 2040, 3000 CA Rotterdam, The Netherlands.
Eur J Vasc Endovasc Surg. 2011 Aug;42(2):246-53. doi: 10.1016/j.ejvs.2011.04.007. Epub 2011 Apr 30.
The Chronic Venous Insufficiency Quality of Life Questionnaire (CIVIQ) is a disease-specific instrument to measure the impact of chronic venous insufficiency (CVI) on patients' lives. The objective of this study is to test the psychometric properties of the CIVIQ, and to validate the use of the questionnaire translated into the Dutch language.
A standardised questionnaire, including CIVIQ and Short Form (36) Health Survey (SF-36), was obtained before and 1 month after treatment to all new patients with varicose veins. The feasibility was tested by missing responses and response distribution. CIVIQ scores were compared to the SF-36 scores and between different levels of severity of varicose veins. The CIVIQ's reliability was assessed using Cronbach's alpha and test-retest reliability. The structure was studied using factor analysis. The scores before and after therapy were compared to assess responsiveness.
There was a response rate of 93.5%. None of 20 items missed < 10% of responses, but three showed ceiling effect. The CIVIQ correlated well with the physical and moderately with the mental MCS of the SF-36, suggesting a good construct validity of the CIVIQ. The median CIVIQ scores increased significantly with the severity of varicose veins. The CIVIQ showed an excellent internal consistency and an excellent test-retest reliability. The CIVIQ score decreased in 76% of patients after treatment. The results were in accordance with the Norman's rule and showed a median effect size.
This study confirms the feasibility, validity, reliability and responsiveness of the CIVIQ in patients with varicose veins. The psychometric properties of the Dutch CIVIQ were comparable to the original French version.
慢性静脉功能不全生活质量问卷（CIVIQ）是一种专门用于测量慢性静脉功能不全（CVI）对患者生活影响的疾病特异性工具。本研究的目的是测试 CIVIQ 的心理测量特性，并验证将问卷翻译成荷兰语的使用。
所有新的静脉曲张患者在治疗前和治疗后 1 个月均获得标准化问卷，包括 CIVIQ 和简明健康调查量表（SF-36）。通过缺失反应和反应分布来测试可行性。将 CIVIQ 评分与 SF-36 评分进行比较，并在不同严重程度的静脉曲张之间进行比较。使用 Cronbach's alpha 和测试-重测可靠性评估 CIVIQ 的可靠性。使用因子分析研究结构。比较治疗前后的分数以评估反应性。
应答率为 93.5%。没有一个项目的 20 个项目缺失 < 10%的反应，但有三个项目出现上限效应。CIVIQ 与 SF-36 的物理和心理 MCS 高度相关，表明 CIVIQ 的结构效度良好。CIVIQ 评分随静脉曲张的严重程度显著升高。CIVIQ 具有极好的内部一致性和极好的测试-重测可靠性。治疗后 76%的患者的 CIVIQ 评分下降。结果符合 Norman 法则，并显示出中等的效应量。
本研究证实了 CIVIQ 在静脉曲张患者中的可行性、有效性、可靠性和反应性。荷兰语 CIVIQ 的心理测量特性与原版法语版本相当。
