برات براتی - Department of Radiologic Technology, Shoushtar Faculty of Medical Sciences, Shoushtar, Iran
معصومه کیدانی - Department of Occupational Health, Shoushtar Faculty of Medical Sciences, Shoushtar, Iran
فاطمه احمدپور - Department of Clinical Biochemistry, Ahvaz university of Medical Sciences, Ahvaz, Iran
مجتبی کلانتر - Department of Occupational Health, Shoushtar Faculty of Medical Sciences, Shoushtar, Iran
فریبا فرهادی بیرگانی - Department of Radiologic Technology, Shoushtar Faculty of Medical Sciences, Shoushtar, Iran

Background & Objectives: Numerous studies have shown that the risk of death is higher in elderly patients with COVID-۱۹. In Iran, due to the growth of the elderly population and the prevalence of underlying diseases, it is necessary to pay attention to this age group of patients. In this study, clinical, radiological, PCR, and laboratory data of elderly patients with COVID-۱۹ were collected and analyzed in two groups of recovered and dead patients. Materials & Methods: This is a retrospective study of ۱۹۶ consecutive elderly patients with COVID-۱۹ hospitalized from March ۲۱, ۲۰۲۰, to April ۳, ۲۰۲۰, and their follow-up until April ۲۳, ۲۰۲۱. Clinical characteristics, laboratory results, PCR, chest CT scans and Hounsfield Unit data were collected and analyzed in two groups of recovered and dead patients. Obtained Data were analyzed using SPSSv۲۲.۰ and MATLAB-R۲۰۱۷ software. Results: The results showed that there were no specific symptoms to distinguish the death group from the recovery group. Significant differences were observed between the two groups for red blood cell counts, hemoglobin, MCHC and MCV levels, bilirubin, aminotransferase levels, CRP, white blood cells, serum BNU, creatinine and PT coagulation index. The concentrations of VBG (HCO۳) and VBG (PCO۲) in the deceased patients suggest compensated respiratory alkalosis. CT sensitivity is ۱۰۰% for patients in advanced and severe stages of the disease. Conclusion: The patients in the death group had more underlying diseases than the recovered group. COVID-۱۹ patients are more likely to die when they have both diabetes and cardiovascular disease.

Clinical Characteristics, Chest CT scan, COVID-۱۹, Elderly patients, Hounsfield Unit, PCR