Screening Performance of COPD-PS Scale, COPD-SQ Scale, Peak Expiratory Flow, and Their Combinations for Chronic Obstructive Pulmonary Disease in the Primary Healthcare in Haicang District, Xiamen City

Abstract

Abstract Chronic Obstructive Pulmonary Disease (COPD) is a common chronic disease, and its screening performance is crucial for improving early diagnosis and treatment. Our study aims to evaluate the screening performance of COPD-PS questionnaire, COPD-SQ questionnaire, Peak Expiratory Flow (PEF), COPD-PS questionnaire combined with PEF, and COPD-SQ questionnaire combined with PEF for COPD. We collected data from February 2023 to May 2023, distributing self-designed general information survey forms and COPD screening scales (COPD-PS questionnaire and COPD-SQ questionnaire) to residents undergoing physical examination in five community health service centers in Haicang District, Xiamen City, and completed lung function tests and PEF using a portable lung function detector. The results showed that the sensitivity of diagnosing COPD by COPD-SQ questionnaire, COPD-PS questionnaire, PEF, COPD-PS questionnaire combined with PEF, and COPD-SQ questionnaire combined with PEF were 0.439, 0.586, 0.519, 0.586, 0.612 respectively, and the specificity were 0.725, 0.621, 0.688, 0.689, 0.663 respectively, with ROC values of 0.606 (95%CI: 0.586–0.626), 0.640 (0.619–0.661), 0.641 (0.619–0.663), 0.678 (0.657–0.699), 0.685 (0.664–0.706) respectively. The sensitivity of diagnosing GOLD II and above by COPD-SQ questionnaire, COPD-PS questionnaire, PEF, COPD-PS questionnaire combined with PEF, and COPD-SQ questionnaire combined with PEF were 0.489, 0.620, 0.665, 0.630, 0.781 respectively, and the specificity were 0.714, 0.603, 0.700, 0.811, 0.629 respectively, with ROC values of 0.631 (95%CI: 0.606–0.655), 0.653 (0.626–0.679), 0.753 (0.730–0.777), 0.784 (0.762–0.806), 0.766 (0.744–0.789) respectively. Our study found that the accuracy of COPD screening by COPD-SQ questionnaire and COPD-PS questionnaire can be improved by combining the results of PEF. The screening performance of COPD-SQ questionnaire combined with PEF is relatively better. In future research, further studies are needed to optimize the performance of screening tools and understand whether their use will affect clinical outcomes.