Background: We aimed to compare the clinical, laboratory and radiological findings of confirmed COVID-19 and unconfirmed patients. Methods: This was a single-center, retrospective study. Results: Overall, 620 patients (338 confirmed COVID-19 and 282 unconfirmed) were included. Confirmed COVID‐19 patients had higher percentages of close contact with a confirmed or probable case. In univariate analysis, the presence of myalgia and dyspnea, decreased leukocyte, neutrophil and platelet counts were best predictors for SARS-CoV-2 RT-PCR positivity. Multivariate analyses revealed that only platelet count was an independent predictor for SARS-CoV-2 RT-PCR positivity. Conclusion: Routine complete blood count may be helpful for distinguishing COVID-19 from other respiratory illnesses at an early stage, while PCR testing is unique for the diagnosis of COVID-19.
【저자키워드】 COVID-19, Diagnosis, complete blood count, Platelet, close contact, SARS-CoV-2 PCR, 【초록키워드】 neutrophil, Laboratory, Retrospective study, PCR testing, Dyspnea, Patient, predictor, SARS-CoV-2 RT-PCR, early stage, patients, myalgia, leukocyte, multivariate, single-center, routine, Univariate analysis, radiological finding, independent, respiratory illness, unique, analysis, Confirmed, COVID‐19 patient, diagnosis of COVID-19, percentage, 【제목키워드】 Laboratory, COVID-19 patient, radiological feature,