first cases in COVID-19 pneumonia in our country. METHODS: We gathered the data of COVID-19 pneumonia participants from our electronic medical system, including daily medical knowledge and laboratory, radiological, and microbiological results between March 10 to April 7, 2020. RESULTS: Totally, 125 patients, whose fi ndings were compatible with COVID-19, were included in the study, 42 patients were excluded from the study. The distribution of genders was, 39 females (46.9 %), 44 males (53.01 %), the average age was 56.36 ± 16.25 (19-85). Hypertension above 60 years of age and diabetes mellitus under 60 years of age were the most common comorbidities. Neutrophils/ Lymphocyte percent (% NLR) was noted in 44 (53.01 %) patients, average: 3 (range 1.78-4.63). There was a statistically signifi cant and positive relationship between D-dimer and C Reactive Protein (CRP) and ferritin. CONCLUSION: We detected that comorbidities, which were seen at COVID-19 disease differ according to the patients age. Besides that D-dimer, ferritin and CRP outcomes were particularly high and had a signifi cant correlation with COVID-19 severity (Tab. 3, Fig. 2, Ref. 25).