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Predictive models of COVID-19 in India: A rapid review.

Authors
  • Kotwal, Atul1
  • Yadav, Arun Kumar2
  • Yadav, Jyoti3
  • Kotwal, Jyoti4
  • Khune, Sudhir5
  • 1 MG (Med), South Western Command, C/o 56 APO, India. , (India)
  • 2 Associate Professor, Department of Community Medicine, Armed Forces Medical College, Pune, India. , (India)
  • 3 Independent Researcher, 1006, Sandalwood Building, Green Valley, Wanowarie, Pune, India. , (India)
  • 4 Professor, (Pathology), Sir Ganga Ram Hospital, New Delhi, India. , (India)
  • 5 Resident, Department of Community Medicine, Armed Forces Medical College, Pune, India. , (India)
Type
Published Article
Journal
Medical Journal Armed Forces India
Publisher
Elsevier
Publication Date
Oct 01, 2020
Volume
76
Issue
4
Pages
377–386
Identifiers
DOI: 10.1016/j.mjafi.2020.06.001
PMID: 32836710
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

The mathematical modelling of coronavirus disease-19 (COVID-19) pandemic has been attempted by a wide range of researchers from the very beginning of cases in India. Initial analysis of available models revealed large variations in scope, assumptions, predictions, course, effect of interventions, effect on health-care services, and so on. Thus, a rapid review was conducted for narrative synthesis and to assess correlation between predicted and actual values of cases in India. A comprehensive, two-step search strategy was adopted, wherein the databases such as Medline, google scholar, MedRxiv, and BioRxiv were searched. Later, hand searching for the articles and contacting known modelers for unpublished models was resorted. The data from the included studies were extracted by the two investigators independently and checked by third researcher. Based on the literature search, 30 articles were included in this review. As narrative synthesis, data from the studies were summarized in terms of assumptions, model used, predictions, main recommendations, and findings. The Pearson's correlation coefficient (r) between predicted and actual values (n = 20) was 0.7 (p = 0.002) with R2 = 0.49. For Susceptible, Infected, Recovered (SIR) and its variant models (n = 16) 'r' was 0.65 (p = 0.02). The correlation for long-term predictions could not be assessed due to paucity of information. Review has shown the importance of assumptions and strong correlation between short-term projections but uncertainties for long-term predictions. Thus, short-term predictions may be revised as more and more data become available. The assumptions too need to expand and firm up as the pandemic evolves. © 2020 Director General, Armed Forces Medical Services. Published by Elsevier, a division of RELX India Pvt. Ltd.

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