• Alper Karacan, Zehra Kurt, Onur Taydaş, Yasemin Gündüz, Mehmet Halil Öztürk, Ömer Faruk Ateş, and Fatih Guneysu.
• Sakarya University Faculty of Medicine, Department of Radiology - Sakarya, Turkey.
• Rev Assoc Med Bras (1992). 2021 Apr 1; 67 (4): 542-548.

ObjectiveTo compare the computed tomography (CT) imaging findings of coronavirus disease 2019 (COVID-19) by gender and age groups.MethodsThe patients with COVID-19 (n=1,024) were divided into nine age groups (0-9 years, 10-19 years, 20-29 years, 30-39 years, 40-49 years, 50-59 years, 60-69 years, 70-79 years, and 80 years and above). The CT findings were retrospectively analyzed according to the age groups and gender.ResultsUnder 20 years of age, except for the ground-glass opacity and consolidation, no other finding was observed. Airway changes and crazy-paving pattern were more common over 80 years. While the tree-in-bud pattern was more common in the 20-29 age group than in other age groups, the halo sign was mostly seen at the age of 30-39 years. Unlike other groups, the thin reticular pattern was more common in patients aged 60-79 years. When the findings were compared by gender, the rates of centrilobular nodules (p=0.006), airway changes (p=0.004), and tree-in-bud pattern (p=0.050) were significantly higher in males than in females.ConclusionThe chest CT findings of COVID-19 show significant changes according to age and gender. The findings that are more common in elderly and male patients should be carefully evaluated in terms of the prognosis of the disease.

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