ANALYSIS FACTORS AFFECTING COVID-19 MORTALITY USING COUNT REGRESSION
DOI:
https://doi.org/10.25077/jmua.13.4.270-286.2024Keywords:
COVID-19, WHO, Overdispersion, Zero-inflation, Mixed-effects, Death counts,Abstract
The â€2019 novel coronavirus†known as “ the 2019-nCoV†or simply“COVID-19†has been declared by the World Health organization (WHO), in first quarter of 2020, as a world pandemic and a public health emergency of international concern. Alas, many details related to the COVID-19 have remained unsolved completely. The success of government strategies in fighting the COVID-19 relays mainly on the results from epidemiological or statistical studies. Statistical models play a major role in providing reliable results based on appropriate analyses. Traditional (one-part) models, mixture models and mixed-effects models for counts are used to investigate effects of the WHO-regions and Cumulated COVID-19 cases on the outcome variable COVID-19 new deaths tolls. Overall result reveals there is a strong association between number of new deaths COVID-19 with predictors including the WHO regions and cumulated cases.
Besides, models that account for the overdispersion feature have smallest AICs and have reasonable regression model fits.
References
World Health Organization. WHO COVID-19 Case definition. Updated in Public health surveillance for COVID-19, 1(December 16):1, 2020.
P. Armitage, G. Berry, and J.N.S. Mattews. Statistical methods in medical
research. Blackwell Science, 4th ed edition, 2020.
Cameron A. Colin and Trivedi Pravin. Regression analysis of count data, Second edition. Cambridge University Press, 2013.
Assaf Anyamba, Jean Paul Chretien, Seth C. Britch, Radina P. Soebiyanto,
Jennifer L. Small, Rikke Jepsen, Brett M. Forshey, Jose L. Sanchez, Ryan D.
Smith, Ryan Harris, Compton J. Tucker, William B. Karesh, and Kenneth J.
Linthicum. Global Disease Outbreaks Associated with the 2015–2016 El Ni˜no
Event. Scientific Reports, 9(1):1–14, 2019.
Jianwei Huang, Mei Po Kwan, Zihan Kan, Man Sing Wong, Coco Yin Tung
Kwok, and Xinyu Yu. Investigating the relationship between the built environment and relative risk of COVID-19 in Hong Kong. ISPRS International
Journal of Geo-Information, 9(11), 2020.
J.H. Lee, G. Han, W.J. Fulp, and A.R. Giuliano. Analysis of overdispersed
count data: application to the human papillomavirus infection in men (HIM)
Study. Epidemiology infection, 140:1087–1094, 2012.
Akira Endo, Sam Abbott, Adam J. Kucharski, and Sebastian Funk. Estimating the overdispersion in COVID-19 transmission using outbreak sizes outside
China. Wellcome Open Research, 5:67, 2020.
Shi Zhao, Mingwang Shen, Salihu S. Musa, Zihao Guo, Jinjun Ran, Zhihang
Peng, Yu Zhao, Marc K.C. Chong, Daihai He, and Maggie H. Wang. Inferencing
superspreading potential using zero-truncated negative binomial model: exemplification with COVID-19. BMC Medical Research Methodology, 21(1):1–8,
James O. Lloyd-Smith. Maximum likelihood estimation of the negative binomial dispersion parameter for highly overdispersed data, with applications to
infectious diseases. PLoS ONE, 2(2):1–8, 2007.
Taeho Kim, Benjamin Lieberman, George Luta, and Edsel A. PeËœna. Prediction Regions for Poisson and Over-Dispersed Poisson Regression Models with
Applications in Forecasting the Number of Deaths during the COVID-19 Pandemic. Open Statistics, 2(1):81–112, 2021.
Stephen Chan, Jeffrey Chu, Yuanyuan Zhang, and Saralees Nadarajah. Count
regression models for COVID-19. Physica A, 2021 Feb 1(563:125460), 2020.
Samit Ghosal, Sumit Sengupta, Milan Majumder, and Binayak Sinha. Prediction of the number of deaths in India due to SARS-CoV-2 at 5–6 weeks.
Diabetes and Metabolic Syndrome: Clinical Research and Reviews, 14(4):311–
, 2020.
A. Agresti. An Introduction to Categorical Data Analysis. Wiley, New York,
rd ed edition, 2013.
Hafiz Khan. COVID-19 Epidemic Models: A Study from Georgia State in the
USA. American Journal of Biomedical Science and Research, 10(3):295–302,
T. Martin Lukusa, Shen-Ming Lee, and Chin-Shang Li. Review of Zero-Inflated
Models with Missing Data. Current Research in Biostatistics, 7(1):1–12, 2017.
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