Clinical Severity and High-Resolution CT severity score in COVID-19; is there an association?

<bold>Objectives:</bold> To identify a correlation between the clinical parameters and CT chest severity score in COVID-19. <bold>Methods:</bold> A total of 205 RT-PCR positive patients were included in this descriptive cross-sectional study with convenience sampling from November 2020 to June 2021 in KRL Hospital. The study population was stratified in disease severity as per the WHO’s guidelines. Clinical and radiological characteristics were compared in survivors and non survivors to draw conclusion <bold>Results:</bold> The mean age was 57 years and the majority of the patients were male 57%. Overall mortality was 22% and the mean CT severity score was 18. Non survivors were significantly more tachypneic, hypoxic, had a higher CT chest severity score, higher clinical severity, more comorbid condition and higher TLC, D-Dimers, LDH, CRP, NLR. Raised CT severity score showed a conclusive correlation with greater disease severity. One way ANOVA showed a significant difference between mean CT severity score amongst different disease categories. <bold>Conclusion:</bold> Higher CT severity score corresponds to a higher clinical severity and higher chances of mortality.