P5‐33: Impacts of the COVID‐19 pandemic on hospitalizations for pneumonia in Brazil

351 COVID-19 patients (178 males and 173 females, mean age 59.3 years) admitted to our hospital between April 3, 2020, and May 31, 2021. According to the severity of illness classification by the National Institutes of Health (NIH), USA, the cases were classified into four groups (mild, moderate, severe, and critical). A comparative study was conducted on background factors such as underlying diseases, clinical test values, and the spread of opacity in computed tomography (CT) chest imaging. Results: Exacerbation factors included age, underlying diseases (diabetes mellitus, interstitial pneumonia), low lymphocyte count, high D-dimer values, and the extent of opacity on CT chest imaging. Multivariate analysis revealed concomitant diabetes mellitus and a wider area of opacity on CT chest imaging as independent exacerbation factors. Conclusion: Concomitant diabetes mellitus and the extent of opacity on CT chest imaging were associated with exacerbation in COVID-19 patients.