An outbreak of pneumonia, caused by a novel coronavirus (SARS-CoV-2), was identified in China in December 2019. This virus expanded worldwide, causing global concern. Although clinical, laboratory, and imaging features of COVID-19 are characterized in some observational studies, we undertook a systematic review and meta-analysis to assess the frequency of these features. We did a systematic review and meta-analysis using three databases to identify clinical, laboratory, and computerized tomography (CT) scanning features of rRT-PCR confirmed cases of COVID-19. Data for 3420 patients from 30 observational studies were included. Overall, the results showed that fever (84.2%, 95% CI 82.6-85.7), cough (62%, 95% CI 60-64), and fatigue (39.4%, 95% CI 37.2-41.6%) are the most prevalent symptoms in COVID-19 patients. Increased CRP level, decreased lymphocyte count, and increased D-dimer level were the most common laboratory findings. Among COVID-19 patients, 92% had a positive CT finding, most prevalently ground-glass opacification (GGO) (60%, 95% CI 58-62) and peripheral distribution opacification (64%, 95% CI 60-69). These results demonstrate the clinical, paraclinical, and imaging features of COVID-19.
【초록키워드】 COVID-19, Meta-analysis, SARS-CoV-2, fatigue, Pneumonia, systematic review, Symptom, cough, virus, database, observational studies, observational study, Novel coronavirus, Laboratory, China, Computerized tomography, Lymphocyte count, rRT-PCR, Features, outbreak, Fever, Patient, GGO, distribution, COVID-19 patients, D-dimer level, Frequency, confirmed case, 95% CI, CRP level, positive, feature, prevalent, identify, caused, characterized, Increased, 【제목키워드】 review, clinical, novel,