Taherpour, Niloufar http://orcid.org/0000-0002-8336-0671
Mehrabi, Yadollah http://orcid.org/0000-0001-9837-4956
Seifi, Arash http://orcid.org/0000-0002-6174-0315
Eshrati, Babak http://orcid.org/0000-0001-5999-7173
Hashemi Nazari, Seyed Saeed http://orcid.org/0000-0002-0883-3408
Article History
Received: 25 June 2020
Accepted: 7 December 2020
First Online: 4 January 2021
Ethics approval and consent to participate
: This article is adapted from a master’s thesis in Epidemiology. The ethical approval was granted from the ethics committee and review board of the school of Public Health and Neuroscience Research Center (PHNS), Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran (IR.SBMU.PHNS.REC.1398.101). Permission to access the raw data was granted by the Iranian Center for Communicable Disease Control (ICCDC) in the Ministry of Health and Medical Education and six hospitals affiliated to Tehran, Iran and Shahid- Beheshti university of medical sciences. The data of all cases was anonymized and was extracted with removal of identifiable information. The requirement for informed consent from participants was waived because of the registry-based nature of the study.
: Not applicable.
: The authors declare that they have no competing interests.