Fatemeh Khosravi Shadmani
1 
, Alireza Amanollahi
2 , Alireza Zali
3, Farid Najafi
1, Manoochehr Karami
2,4, Ghobad Moradi
5, Abdollah Mohammadian-Hafshejani
6,7, Ali Ahmadi
6,7, Majid Sartipi
8 , Masoud Shojaeian
9, Elham Noori
10, Masoumeh Javaheri
9, Ayad Bahadorimonfared
11, Seyed-Saeed Hashemi-Nazari
12* 1 Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
2 Department of Epidemiology, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
3 Department of Neurosurgery, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
4 Department of Epidemiology, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran
5 Social Determinants of Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
6 Department of Epidemiology and Biostatistics, School of Health, Shahrekord University of Medical Sciences, Shahrekord, Iran
7 Modeling in Health Research center, Shahrekord University of Medical Sciences, Shahrekord, Iran
8 Health Promotion Research Centre, School of Public Health, Zahedan University of Medical Sciences, Zahedan, Iran
9 Deputy of Health, Hamadan University of Medical Sciences, Hamadan, Iran
10 Department of Epidemiology and Biostatistics, Kurdistan University of Medical Science, Sanandaj, Iran
11 Department of Health & Community Medicine, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
12 Prevention of Cardiovascular Disease Research Center, Department of Epidemiology, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
Abstract
Background: Clinical manifestations of COVID–19 are different. There are some risk factors for COVID–19. This study aimed to describe the epidemiological features, symptoms and mortality of the patients with COVID–19 in Iran.
Methods: This were a cohort study performed on 103,179 patients with COVID–19. The demographic and clinical data were collected in selected provinces. The required data of all patients was extracted from the COVID registry system and analyzed using STATA version 14 and Excel 2016.
Results: The mean age was 52.40 years for men and 52.41 years for women. About 55.2% of the study population were male and 44.8% were female. Totally, 60.9% (5085) of deaths happened in men and 39.1% (3263) in women. The mean time from onset of symptoms to hospitalization in men and women were 3.47 and 3.48 days, respectively. The mean time from onset of symptoms to isolation was 2.81 days in men and was 2.87 days in women, from onset of symptoms to death was 9.29 and 9.54 days, respectively, from onset of symptoms to discharge was 7.47 and 7.39 days, and from hospitalization to death was 6.76 and 7.05 days. Cough and shortness of breath were the most common symptoms in the patients.
Conclusion: According to the results, the overall mortality rate was higher in men than women. Women with cardiovascular disease and diabetes were more likely to die. The mean time from onset of symptoms to hospitalization, isolation, and discharge was similar in men and women.