Development and psychometric testing of the Visual Analogue Scale for Irritable Bowel Syndrome (VAS-IBS)
Development and psychometric testing of the Visual Analogue Scale for Irritable Bowel Syndrome (VAS-IBS)
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DOI：
10.1186/1471-230x-7-16
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发表时间：
2007-05-03
影响因子：
2.4
通讯作者：
Ulander, Kerstin
中科院分区：
文献类型：
--
作者：
Bengtsson, Mariette;Ohlsson, Bodil;Ulander, Kerstin
背景：这项研究的目的是开发一份简短的、患者报告的问卷，用于肠易激综合征(IBS)患者的临床实践，并进行心理测量学测试。为测量肠易激综合征患者对症状和幸福感的治疗反应，设计了肠易激综合征视觉模拟量表(VAS-IBS)问卷。方法：对VAS-IBS进行内容效度和效标效度、量表可接受性、条目简化、内部信度一致性、简单性和速度的心理测量。我们使用了两个样本。一个专家小组(5名医生和4名注册护士)和71名IBS患者(平均年龄38岁，SD+13，范围19-65)完成了VAS-IBS，以及胃肠道症状评定量表和心理总体幸福感指数的标准效度。结果：VAS-IBS中的项目反映了IBS女性可能存在的主要生理问题，心理测量学测试证实VAS-IBS是一个可以接受的同质患者报告问卷，由Cronbach的α内部一致性信度系数表示，其值为0.85。用皮尔逊相关检验检验标准效度的所有相关系数均有统计学意义(p<；0.0001)，且均在预期的方向上。结论：VAS-IBS对患者和医务人员都具有较好的可信度和易用性。VAS-IBS的最终版本包括9个项目，需要在临床实践中进行进一步的跨文化测试，既包括男性也包括女性。
Background: The aim of this study was to develop and psychometrically test a short, patient-reported questionnaire to be used in clinical practice for patients with Irritable Bowel Syndrome (IBS). The Visual Analogue Scale for Irritable Bowel Syndrome (VAS-IBS) questionnaire was designed to measure the treatment response of symptoms and well-being in patients suffering from IBS.Methods: The VAS-IBS was psychometrically tested for content and criterion validity, scale acceptability, item-reduction, internal reliability consistency, simplicity, and speed. Two samples were used. One expert panel (five physicians and four registered nurses), who gave their opinion on the content validity, and one of 71 patients with IBS (mean age 38 years SD + 13, range 19-65), who completed the VAS-IBS, as well as the Gastrointestinal Symptom Rating Scale and the Psychological General Well-Being Index for criterion validity.Results: The items in the VAS-IBS capture the main physical concerns women with IBS might present and the psychometric testing confirmed that the VAS-IBS is an acceptable homogeneous patient-reported questionnaire indicated by Cronbach's alpha internal consistency reliability coefficient, with a value of 0.85. All correlations to test the criterion validity performed by using Pearson's correlation test, were statistically significant (p < 0.0001) and in the expected directions. The VAS-IBS is easy to complete and unproblematic to calculate.Conclusion: The VAS-IBS appears to be reliable and user-friendly, for patients as well as for health professionals. The final version of the VAS-IBS including nine items needs to be further tested in clinical practice cross-culturally in women as well as in men.