Article ; Online: Forecasting COVID-19 confirmed cases, deaths and recoveries: Revisiting established time series modeling through novel applications for the USA and Italy.
PloS one
2021 Volume 16, Issue 1, Page(s) e0244173
Abstract: ... deaths, and recoveries of COVID-19. However, for the majority of the analyses, the time series model ... for both the USA and Italy. We observed that all models reasonably predicted the future numbers of confirmed cases ... with these models, forecasting the number of infected cases (confirmed cases and similarly the number of deaths and ...
| Abstract | The novel coronavirus (COVID-19) is an emergent disease that initially had no historical data to guide scientists on predicting/ forecasting its global or national impact over time. The ability to predict the progress of this pandemic has been crucial for decision making aimed at fighting this pandemic and controlling its spread. In this work we considered four different statistical/time series models that are readily available from the 'forecast' package in R. We performed novel applications with these models, forecasting the number of infected cases (confirmed cases and similarly the number of deaths and recovery) along with the corresponding 90% prediction interval to estimate uncertainty around pointwise forecasts. Since the future may not repeat the past for this pandemic, no prediction model is certain. However, any prediction tool with acceptable prediction performance (or prediction error) could still be very useful for public-health planning to handle spread of the pandemic, and could policy decision-making and facilitate transition to normality. These four models were applied to publicly available data of the COVID-19 pandemic for both the USA and Italy. We observed that all models reasonably predicted the future numbers of confirmed cases, deaths, and recoveries of COVID-19. However, for the majority of the analyses, the time series model with autoregressive integrated moving average (ARIMA) and cubic smoothing spline models both had smaller prediction errors and narrower prediction intervals, compared to the Holt and Trigonometric Exponential smoothing state space model with Box-Cox transformation (TBATS) models. Therefore, the former two models were preferable to the latter models. Given similarities in performance of the models in the USA and Italy, the corresponding prediction tools can be applied to other countries grappling with the COVID-19 pandemic, and to any pandemics that can occur in future. |
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| MeSH term(s) | COVID-19/epidemiology ; COVID-19/mortality ; COVID-19/prevention & control ; Communicable Disease Control ; Computer Simulation ; Decision Making ; Forecasting/methods ; Humans ; Italy/epidemiology ; Models, Biological ; United States/epidemiology |
| Language | English |
| Publishing date | 2021-01-07 |
| Publishing country | United States |
| Document type | Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't |
| ISSN | 1932-6203 |
| ISSN (online) | 1932-6203 |
| DOI | 10.1371/journal.pone.0244173 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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