论文部分内容阅读
目的评估喉高度、肺功能问卷诊断COPD的灵敏度、特异度、阳性似然比及阴性似然比。方法对233名40~75岁的受试者进行横断面研究,观察指标为年龄、性别、体质量、身高、体质指数、吸烟、最大喉高度、呼吸量,同时进行COPD问卷和肺功能问卷的调查。结果以COPD问卷结果为金标准,喉高度诊断COPD的阳性似然比为5.21,肺功能问卷诊断COPD的阴性似然比为0.10。将最大喉高度<4 cm联合肺功能问卷评分≤18分诊断COPD的阳性似然比为29.06,阴性似然比为0.26。结论肺功能问卷的内在效度使其可用于筛查。肺功能问卷与喉高度相结合有助于确诊或排除COPD。
Objective To assess the sensitivity, specificity, positive likelihood ratio and negative likelihood ratio of diagnosis of laryngeal height and pulmonary function questionnaire in COPD patients. Methods A total of 233 subjects (40-75 years old) were studied by cross-sectional study. The indexes included age, sex, body weight, height, body mass index, smoking, maximum laryngeal height and respiration. COPD questionnaire and pulmonary function questionnaire survey. Results The COPD questionnaire was used as the gold standard. The positive likelihood ratio of diagnosis of COPD in laryngeal height was 5.21. The negative likelihood ratio of diagnosis of COPD in pulmonary function questionnaire was 0.10. The positive likelihood ratio of COPD was 29.06 and the negative likelihood ratio was 0.26 when the maximum throat height <4 cm and pulmonary function questionnaire score ≤ 18 points. Conclusions The intrinsic validity of the pulmonary function questionnaire makes it useful for screening. Pulmonary function questionnaire combined with throat height can help confirm or rule out COPD.