Time Series Regression Models for COVID-19 Deaths
Volume 19, Issue 2 (2021): Special issue: Continued Data Science Contributions to COVID-19 Pandemic, pp. 269–292
Pub. online: 7 May 2021
Type: Data Science In Action
Received
1 August 2020
1 August 2020
Accepted
1 November 2020
1 November 2020
Published
7 May 2021
7 May 2021
Abstract
This article develops nonlinear functional forms for modeling count time series of daily deaths due to the COVID-19 virus. Our models explain the mean levels of the time series while accounting for the time-varying variances. A Bayesian approach using Markov chain Monte Carlo (MCMC) is adopted for analysis, inference and forecasting of the time series under the proposed models. Applications are shown for time series of death counts from several countries affected by the pandemic.
Supplementary material
Supplementary MaterialSupplementary material online include: rational functions and nonlinear rational polynomial model; tables with fitted model parameters and residual analysis; a brief Report for each of the countries that we considered; data and R code needed to reproduce the results.
References
Girardi P, Greco L, Mameli V, Musio M, Racugno W, Ruli E, et al. (2020). Robust inference for nonlinear regression models from the Tsallis score: Application to COVID-19 contagion in Italy. ArXiv preprint: https://doi.org/10.1002/sta4.309.
Ju B, Zhang Q, Ge X, Wang R, Yu J, Shan S, et al. (2020). Potent human neutralizing antibodies elicited by SARS-CoV-2 infection. BioRxiv preprint: https://doi.org/10.1101/2020.03.21.990770.
Kulikov VS (2001). Rational function. In: Encyclopedia of Mathematics (M Hazewinkel, ed.). http://encyclopediaofmath.org/index.php?title=Rational_function&oldid=48438.
Sonnino G (2020). Dynamics of the COVID-19 comparison between the theoretical predictions and the real data. ArXiv preprint: https://arxiv.org/abs/2003.13540.
World Health Organization (2020a). Coronavirus disease (COVID-19) pandemic. https://www.who.int/health-topics/coronavirus#tab=tab_1.
World Health Organization (2020b). Coronavirus disease (COVID-19) pandemic. https://www.who.int/emergencies/diseases/novel-coronavirus-2019.
World Health Organization (2020c). Coronavirus disease (COVID-19): Situation reports. https://www.who.int/emergencies/diseases/novel-coronavirus-2019/situation-reports.
World Health Organization (2020d). Laboratory testing strategy recommendations for COVID-19: Interim guidance. https://www.who.int/publications/i/item/laboratory-testing-strategy-recommendations-for-covid-19-interim-guidance.