The lymphocyte/CRP ratio has been studied many times in covid-19 patients and has been proven to be an indicator of mortality as well as poor prognosis. In this study, the role of the lymphocyte/procalcitonin ratio in predicting the hospitalization status of patients, detection of findings on CT, need for mechanical ventilation, mortality and survival is aimed to be determined. The lymphocyte/procalcitonin ratio was found to be the strongest predictor of mortality and poor prognosis, especially in patients over 65 years of age.

The lymphocyte/CRP ratio has been studied many times in covid-19 patients and has been proven to be an indicator of mortality as well as poor prognosis. In this study, the role of the lymphocyte/procalcitonin ratio in predicting the hospitalization status of patients, detection of findings on CT, need for mechanical ventilation, mortality and survival is aimed to be determined. The lymphocyte/procalcitonin ratio was found to be the strongest predictor of mortality and poor prognosis, especially in patients over 65 years of age. The auc value, PPV and specificity of the lymphocyte/procalcitonin ratio were higher than the lymphocyte/CRP ratio.

Inclusion Criteria:

• Covid19 PCR test positive

Exclusion Criteria:

• Pregnancy Under 18 years old

Patients over 18 years of age who applied to suleyman demirel university emergency department and diagnosed with covid 19 by PCR