comorbidity of diabetes and covid-19 in 570 positive polymerase chain reaction patients in yazd-2019-2020

Objective: epidemiological evidence shows that the prevalence of patients with comorbidity of diabetes mellitus (dm), in coronavirus disease 2019 (covid-19) is remarkable and they have poor prognosis. we aimed to investigate the comorbidity of diabetes and covid-19 in positive polymerase chain reaction people in yazd. materials and methods: this retrospective cohort study included data of 570 covid-19 positive patients, admitted to shahid sadoughi hospital in yazd, iran, from february2019 to may 2020, including demographic data and clinical outcome of covid-19. study data were analyzed using spss software-22 and t-test, chi-square and a binary logistic regression model were used for modeling. results: prevalence of covid-19 patients with diabetes was 27% and the percentage of male patients was 62.6%. additionally, duration of hospitalization significantly higher in diabetic patients (p= 0.004), need to invasive mechanical ventilation in diabetic patients was significantly higher than non-diabetic patients (p˂ 0.001) conclusion: dm is one of the most important comorbidity with covid-19 patients and this comorbidity affects the severity of the disease and the outcome of patients.