Journal of Occupational
Health and Epidemiology
Rafsanjan university Of medical sciences
Volume 12, Issue 1 (Winter 2023)
J Occup Health Epidemiol 2023, 12(1): 18-27 |
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Shabestan R, Amani B, Amani B, Khorramnia S, Zareei S, Parsaie M R, et al . Epidemiological Characteristics of COVID-19 Patients in Mazandaran, Iran, 2021. J Occup Health Epidemiol 2023; 12 (1) :18-27
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Rouhollah Shabestan * 
1, Bahman Amani2 , Behnam Amani2 , Saeed Khorramnia3 , Sara Zareei4 , Mohammad Reza Parsaie5 , Hormoz Kianian6 , Ali Charkameh6 , Arash Akbarzadeh7
1, Bahman Amani2 , Behnam Amani2 , Saeed Khorramnia3 , Sara Zareei4 , Mohammad Reza Parsaie5 , Hormoz Kianian6 , Ali Charkameh6 , Arash Akbarzadeh7
1- M.Sc in Epidemiology, Dept. of Biostatistics and Epidemiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. , r-shabestan@alumnus.tums.ac.ir
2- M.Sc in Health Technology Assessment, Dept. of Health Management and Economics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
3- Assistant Prof., Dept. of Anesthesiology, School of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran.
4- M.Sc in Biochemistry, Dept. of Cell & Molecular Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran.
5- MD, Health Deputy, Mazandaran University of Medical Sciences, Sari, Iran.
6- B.Sc in Public Health, Health Deputy, Mazandaran University of Medical Sciences, Sari, Iran.
7- M.Sc in Biostatistics, Dept. of Biostatistics and Epidemiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
2- M.Sc in Health Technology Assessment, Dept. of Health Management and Economics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
3- Assistant Prof., Dept. of Anesthesiology, School of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran.
4- M.Sc in Biochemistry, Dept. of Cell & Molecular Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran.
5- MD, Health Deputy, Mazandaran University of Medical Sciences, Sari, Iran.
6- B.Sc in Public Health, Health Deputy, Mazandaran University of Medical Sciences, Sari, Iran.
7- M.Sc in Biostatistics, Dept. of Biostatistics and Epidemiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
Article history
Received: 2022/03/12
Accepted: 2023/01/25
ePublished: 2023/03/27
Accepted: 2023/01/25
ePublished: 2023/03/27
Subject:
Epidemiology
Abstract: (464 Views)
Background: COVID-19 continues to pose a significant healthcare challenge throughout the world. This study aimed to investigate epidemiological characteristics and associated mortality factors among hospitalized patients with COVID-19 in the Mazandaran province.
Materials & Methods: In this descriptive study, the medical information of patients admitted to 39 hospitals in 17 cities in Mazandaran province between February 20, 2020, and February 20, 2021, were initially assessed and then entered the survey based on the study criteria. For data analysis, statistical approaches such as Chi-square and Fisher's exact test were performed at a significance level of 5%.
Results: Out of the initial 34036 patients total patients, 21007 were included in the study with a mean age of 53.75±18.23 years, and 10219(48.6%) were males. The majority of cases and the highest mortality percent belonged to the age groups of 60 to 70 and 70 to 80. The Mortality proportion was 11.6% (n=2431), with a higher value in males than females. Moreover, the highest mortality rate was seen in ICU (n=2803, 85.7%). Underlying diseases with the highest mortality rate were diabetes (n=2058, 43%) and chronic heart disease (n=166, 6.83%). The most common symptoms of illness were fever (n=9025, 43%), hemoptysis (n=5911, 28.10%), sore throat (n=3771, 18%), and low blood pressure (n=3626, 17.30%).
Conclusion: This study showed a high mortality rate among COVID-19 cases and dissected the related risk factors, including age, gender, underlying diseases, and ICU admission.
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