1. Hernandez-Aceituno A, Larumbe Zabala E. [Risk factors for mortality from COVID-19 Omicron variant: Retrospective analysis in elderly from the Canary Islands]. Rev Esp Geriatr Gerontol. 2023;58(4):101381. [
DOI:10.1016/j.regg.2023.101381]
2. Li Y, Wang Y. Coronavirus disease 2019 in the elderly: Clinical characteristics, diagnosis and treatment strategies. Zhong Nan Da Xue Xue Bao Yi Xue Ban. 2020;45(5):549-54.
3. Rahman S, Montero MTV, Rowe K, Kirton R, Kunik Jr F. Epidemiology, pathogenesis, clinical presentations, diagnosis and treatment of COVID-19: a review of current evidence. Expert Review of Clinical Pharmacology. 2021;14(5):601-21. [
DOI:10.1080/17512433.2021.1902303]
4. Martin B, DeWitt PE, Russell S, Anand A, Bradwell KR, Bremer C, et al. Characteristics, Outcomes, and Severity Risk Factors Associated With SARS-CoV-2 Infection Among Children in the US National COVID Cohort Collaborative. JAMA Netw Open. 2022;5(2):e2143151. [
DOI:10.1001/jamanetworkopen.2021.43151]
5. Ly TDA, Zanini D, Laforge V, Arlotto S, Gentile S, Mendizabal H, et al. Pattern of SARS-CoV-2 infection among dependant elderly residents living in long-term care facilities in Marseille, France, March-June 2020. Int J Antimicrob Agents. 2020;56(6):106219. [
DOI:10.1016/j.ijantimicag.2020.106219]
6. Hatamabadi H, Sabaghian T, Sadeghi A, Heidari K, Safavi-Naini SAA, Looha MA, et al. Epidemiology of COVID-19 in Tehran, Iran: A Cohort Study of Clinical Profile, Risk Factors, and Outcomes. Biomed Res Int. 2022;2022:2350063. [
DOI:10.1155/2022/2350063]
7. Zhai P, Ding Y, Wu X, Long J, Zhong Y, Li Y. The epidemiology, diagnosis and treatment of COVID-19. International Journal of Antimicrobial Agents. 2020;55(5):105955. [
DOI:10.1016/j.ijantimicag.2020.105955]
8. Custodio ACD, Ribas FV, Toledo LV, Carvalho CJ, Lima LM, Freitas BAC. Hospitalizations and mortality by severe acute respiratory syndrome: comparison between the pre-pandemic and pandemic periods. Rev Bras Epidemiol. 2021;24:e210052. [
DOI:10.1590/1980-549720210052]
9. Kirenga B, Muttamba W, Kayongo A, Nsereko C, Siddharthan T, Lusiba J, et al. Characteristics and outcomes of admitted patients infected with SARS-CoV-2 in Uganda. BMJ Open Respir Res. 2020;7(1). [
DOI:10.1136/bmjresp-2020-000646]
10. Soares RCM, Mattos LR, Raposo LM. Risk Factors for Hospitalization and Mortality due to COVID-19 in Espirito Santo State, Brazil. Am J Trop Med Hyg. 2020;103(3):1184-90. [
DOI:10.4269/ajtmh.20-0483]
11. Kong FZ, Wang Y, Wang MX, Cheng QZ, Logan R, Wu GH, et al. Clinical characteristics of the first known cases of death caused by COVID-19 pneumonia. Aging (Albany NY). 2020;12(22):22405-12. [
DOI:10.18632/aging.104171]
12. Khamis F, Al Rashidi B, Al-Zakwani I, Al Wahaibi AH, Al Awaidy ST. Epidemiology of COVID-19 Infection in Oman: Analysis of the First 1304 Cases. Oman medical journal. 2020;35(3):e145. [
DOI:10.5001/omj.2020.60]
13. Chowdhury SD, Oommen AM. Epidemiology of COVID-19. Journal of digestive endoscopy. 2020;11(01):03-7. [
DOI:10.1055/s-0040-1712187]
14. Buckner FS, McCulloch DJ, Atluri V, Blain M, McGuffin SA, Nalla AK, et al. Clinical Features and Outcomes of 105 Hospitalized Patients With COVID-19 in Seattle, Washington. Clin Infect Dis. 2020;71(16):2167-73. [
DOI:10.1093/cid/ciaa632]
15. Emami Zeydi A, Ghazanfari MJ, Ashrafi S, Maroufizadeh S, Mashhadban M, Khaleghdoost Mohammadi T, et al. Respiratory Support and Clinical Outcomes in Critically Ill Patients with COVID-19 in Intensive Care Unit: A Retrospective Study. Tanaffos. 2022;21(4):487-95.
16. Huang X, Wei F, Hu L, Wen L, Chen K. Epidemiology and clinical characteristics of COVID-19. Archives of Iranian medicine. 2020;23(4):268-71. [
DOI:10.34172/aim.2020.09]
17. Tavakoli Ghouchani H, Delshad A, Shoraka H, Lashkardoost H, Afshari Safavi A, Rahimi J. Clinical Features and Health Behaviors Related to Novel Coronavirus Infection in Patients Presenting to Selected Centers of North Khorasan University of Medical Sciences: A Cross-Sectional Study. Iranian Journal of Epidemiology. 2021;16(5):50-9.
18. Doshmangir L, Mahbub Ahari A, Qolipour K, Azami-Aghdash S, Kalankesh L, Doshmangir P, et al. East Asia's strategies for effective response to COVID-19: Lessons learned for Iran. Management Strategies in Health System. 2020;4(4):370-3. [
DOI:10.18502/mshsj.v4i4.2542]
19. Takahashi T, Ellingson MK, Wong P, Israelow B, Lucas C, Klein J, et al. Sex differences in immune responses that underlie COVID-19 disease outcomes. Nature. 2020;588(7837):315-20. [
DOI:10.1038/s41586-020-2700-3]
20. Chen N, Zhou M, Dong X, Qu J, Gong F, Han Y, et al. Epidemiological and clinical characteristics of 99 cases of 2019 novel coronavirus pneumonia in Wuhan, China: a descriptive study. The lancet. 2020;395(10223):507-13. [
DOI:10.1016/S0140-6736(20)30211-7]
21. Li JX, Liao PL, Wei JC, Hsu SB, Yeh CJ. A chronological review of COVID-19 case fatality rate and its secular trend and investigation of all-cause mortality and hospitalization during the Delta and Omicron waves in the United States: a retrospective cohort study. Front Public Health. 2023;11:1143650. [
DOI:10.3389/fpubh.2023.1143650]
22. Li J, Huang DQ, Zou B, Yang H, Hui WZ, Rui F, et al. Epidemiology of COVID‐19: A systematic review and meta‐analysis of clinical characteristics, risk factors, and outcomes. Journal of medical virology. 2021;93(3):1449-58. [
DOI:10.1002/jmv.26424]
23. Luo L, Liu D, Liao X, Wu X, Jing Q, Zheng J, et al. Contact settings and risk for transmission in 3410 close contacts of patients with COVID-19 in Guangzhou, China: a prospective cohort study. Annals of internal medicine. 2020;173(11):879-87. [
DOI:10.7326/M20-2671]
24. Mehta HB, Li S, Goodwin JS. Risk Factors Associated With SARS-CoV-2 Infections, Hospitalization, and Mortality Among US Nursing Home Residents. JAMA Netw Open. 2021;4(3):e216315. [
DOI:10.1001/jamanetworkopen.2021.6315]
25. Doost Mohammadi F, Rezaeian M. Epidemiology and Strategies for Coping with Novel Coronavirus Disease (COVID-19): A Narrative Review. Journal of Rafsanjan University of Medical Sciences. 2021;20(5):571-96. [
DOI:10.52547/jrums.20.5.571]
26. Johansson MA, Quandelacy TM, Kada S, Prasad PV, Steele M, Brooks JT, et al. SARS-CoV-2 transmission from people without COVID-19 symptoms. JAMA network open. 2021;4(1):e2035057-e. [
DOI:10.1001/jamanetworkopen.2020.35057]
27. Kumaran M, Pham TM, Wang K, Usman H, Norris CM, MacDonald J, et al. Predicting the Risk Factors Associated With Severe Outcomes Among COVID-19 Patients-Decision Tree Modeling Approach. Front Public Health. 2022;10:838514. [
DOI:10.3389/fpubh.2022.838514]
28. Dong G, Du Z, Zhu J, Guo Y, Gao W, Guo W, et al. The clinical characteristics and prognosis of COVID-19 patients with comorbidities: a retrospective analysis of the infection peak in Wuhan. Annals of translational medicine. 2021;9(4). [
DOI:10.21037/atm-20-4052]
29. Blain H, Rolland Y, Benetos A, Giacosa N, Albrand M, Miot S, et al. Atypical clinical presentation of COVID-19 infection in residents of a long-term care facility. Eur Geriatr Med. 2020;11(6):1085-8. [
DOI:10.1007/s41999-020-00352-9]
30. Wang B, An H, Hu H, Zhao W, Jiangtulu B, Wang S, et al. Associations of COVID-19 Pandemic with Clinical Manifestations among the Uninfected Pregnant Women in China: A Combined Cohort Study. 2020. [
DOI:10.22541/au.160284639.90933317/v1]
31. Yazdanpanah F, Jackson AC, Sanaie N, Sharifi F, Shamshirgaran SM, Bahramnezhad F. The epidemiology and treatment outcomes of COVID-19 patients admitted to an intensive care unit in an Iranian hospital in Neyshabur city. Health Sci Rep. 2024;7(4):e2049. [
DOI:10.1002/hsr2.2049]
32. Caruso PF, Angelotti G, Greco M, Albini M, Savevski V, Azzolini E, et al. The effect of COVID-19 epidemic on vital signs in hospitalized patients: a pre-post heat-map study from a large teaching hospital. Journal of clinical monitoring and computing. 2022;36(3):829-37. [
DOI:10.1007/s10877-021-00715-y]
33. Vahedian-Azimi A, Ashtari S, Alishiri G, Shahriary A, Saberi M, Rahimi-Bashar F, et al. The Primary Outcomes and Epidemiological and Clinical Features of Coronavirus Disease 2019 (COVID-19) in Iran. Adv Exp Med Biol. 2021;1321:199-210. [
DOI:10.1007/978-3-030-59261-5_17]
34. Peng F, Tu L, Yang Y, Hu P, Wang R, Hu Q, et al. Management and treatment of COVID-19: the Chinese experience. Canadian Journal of Cardiology. 2020;36(6):915-30. [
DOI:10.1016/j.cjca.2020.04.010]
35. Bhatraju PK, Ghassemieh BJ, Nichols M, Kim R, Jerome KR, Nalla AK, et al. Covid-19 in critically ill patients in the Seattle region-case series. New England Journal of Medicine. 2020;382(21):2012-22. [
DOI:10.1056/NEJMoa2004500]