Evaluation Effects of Modified Early Warning Score Combined with Arterial Oxygen Saturation Monitoring on the Condition and Prognosis of Outpatients with CO VID-19 Infection
Objective To evaluate the feasibility of modified early warning score(MEWS)combined with monitoring of oxygen saturation by arterial oxygen saturation(SpO2)in identifying outpatients with severe corona virus disease 2019(CO VID-19),in order to establish a feasible early-warning model applicable to the evaluation of the condition of outpatients with COVID-19.Methods A retrospective analysis was performed based on the collection of general data of patients with confirmed CO VID-19 who visited COVID-19 Rehabilitation Clinic in Zhengzhou Central Hospital Affiliated to Zhengzhou University from December 15,2022 to January 15,2023.Enrolled patients were divided into control group and corrected MEWS group according to whether MEWS scoring and SpO2 monitoring were performed before ambulatory treatment.The corrected MEWS was analyzed by the receiver operating characteristic(ROC)curve to predict the sensitivity,specificity and optimal cut-off value of the severe outcome in outpatients with COVID-19.Besides,the severe outcome rate,case fatality rate,length of outpatient stay in outpatient department before hospitalization,hospital stay and other indicators within 15 days after outpatient visits were compared between the two groups.Results The sensitivity,specificity and optimal cut-off value of the severe outcome in outpatients with COVID-19 predicted by the corrected MEWS was 83.05％,87.32％and 4.5 points,respectively.Among the factors that constitute the corrected MEWS,the feature importance ratio of SpO2 for the classification of the severe outcome group was up to 42.20％.Compared with the control group,the corrected MEWS group had lower severe outcome rate and shorter length of outpatient stay in outpatient and hospital stay(P＜0.05),but there was no statistically difference in mortality rates between the two groups(P＞0.05).Conclusion The MEWS scoring model revised by SpO2 as a correction factor can effectively identify potential severe COVID-19 outpatients and give early warning.Such early-warning effect may benefit more active clinical treatment decision-making by medical staff,thereby producing a positive effect on the clinical outcome of patients with COVID-19 after outpatient visits and relevant medical economic indicators.
novel coronavirusmodified early warning scoreoxygen saturationclinical outcomefatality rate
万方数据
维普
