Kulbun A.Tovichien P.Chaiyakulsil C.Satdhabudha A.Kamalaporn H.Sunkonkit K.Uppala R.Niyomkarn W.Norasettekul V.Ruangnapa K.Smathakanee C.Choursamran B.Jaroenying R.Sriboonyong T.Sitthikarnkha P.Roekworachai K.Ratanavongkosol T.Thongnual C.Deerojanawong J.Mahidol University2024-10-072024-10-072024-09-01PLoS ONE Vol.19 No.9 (2024)https://repository.li.mahidol.ac.th/handle/20.500.14594/101535Introduction Although chest X-ray is commonly used to diagnose COVID-19 pneumonia, few studies have explored findings in pediatric patients. This study aimed to reveal chest X-ray characteristics in children with COVID-19 pneumonia and compare between non-severe and severe cases. Methods This multicenter, nationwide retrospective study included all children aged 0 to 15 years who were admitted to 13 medical facilities throughout Thailand with COVID-19 pneumonia between January 2020 and October 2021. We analyzed the demographics, clinical features, and chest X-ray results of these children, and compared differences between the non-severe and severe groups. Results During the study period, 1018 children (52% male, median age 5 years) were admitted with COVID-19 pneumonia. Most chest radiographic findings showed bilateral (51%) patchy/ ground glass opacities (61%) in the central area (64%). Only 12% of the children exhibited typical classification for COVID-19 pneumonia, whereas 74% of chest radiographs were categorized as indeterminate. Comorbidities including chronic lung diseases [adjusted OR (95%CI): 14.56 (3.80–55.75), P-value <0.001], cardiovascular diseases [adjusted OR (95% CI): 7.54 (1.44–39.48), P-value 0.017], genetic diseases [adjusted OR (95%CI): 28.39 (4.55–177.23), P-value <0.001], clinical dyspnea [adjusted OR (95%CI): 12.13 (5.94–24.77), P-value <0.001], tachypnea [adjusted OR (95%CI): 3.92 (1.79–8.55), P-value 0.001], and bilateral chest X-ray infiltrations [adjusted OR (95%CI): 1.99 (1.05–3.78), P-value 0.036] were factors associated with severe COVID-19 pneumonia. Conclusion Most children with COVID-19 pneumonia had indeterminate chest X-rays according to the previous classification. We suggest using chest X-rays in conjunction with clinical presentation to screen high-risk patients for early detection of COVID-19 pneumonia.MultidisciplinaryArticleSCOPUS10.1371/journal.pone.03091102-s2.0-8520541919119326203