Objective: To design and validate a high-quality rapid screening questionnaire based on the common medical history and clinical experience of benign paroxysmal positional vertigo (BPPV). Methods: A questionnaire was designed based on expert's opinions, and the first-time patients who complained of dizziness and vertigo in the vertigo clinic of the First Hospital of Shanxi Medical University from September 2020 to June 2021 were prospectively screened. Taking the displacement test as the gold standard, the reliability and validity of the questionnaire were tested to evaluate its authenticity, reliability and benefit value. This study was divided into three steps. The first step was to conduct a pre-experiment and to adjust the questionnaire items; the second step was to determine the questionnaire items and the best cut-off value; the third step was to screen patients with the best cut-off value and to evaluate the quality of the questionnaire. Results: Seven items were finalized. The Cronbach's coefficient of the questionnaire was 0.675, the content validity was 0.85, the KMO value of the construct validity was 0.648, and there were 4 factors with characteristic root>1, and the cumulative contribution rate was 76.309%. The area under the receiver operating characteristic curve (ROC) was 0.938, and its optimal cut-off value was 4.5 points. At this point, the sensitivity was 88.89% and the specificity was 85.44%. Conclusion: The BPPV rapid screening questionnaire has high sensitivity and specificity, which can be used for clinical screening of BPPV patients.
目的： 基于良性阵发性位置性眩晕（BPPV）常见病史和临床经验设计快速筛查问卷，并对其进行验证。 方法： 结合专家意见设计问卷，前瞻性对2020年9月至2021年6月山西医科大学第一医院眩晕门诊以头晕和眩晕为主诉的首诊患者进行筛查。以变位试验作为金标准，对问卷进行信效度检验，评价其真实性、可靠性和收益值。第1步预实验，筛查181例患者，调整问卷条目；第2步确定问卷条目和最佳截断值，筛查168例患者；第3步以最佳截断值对139例患者进行筛查，评价问卷质量。 结果： 最终确定7个条目。该问卷克朗巴赫系数为0.675，内容效度为0.85，结构效度KMO值为0.648，特征根>1的因子有4个，累积贡献率为76.309%。受试者工作特征曲线（ROC）下面积为0.938，其最佳截断值为4.5分，此时其灵敏度为88.89%，特异度为85.44%。 结论： 该BPPV快速筛查问卷灵敏度和特异度均较高，可在临床上对BPPV患者进行筛查。.