Evidence map›Paper›PMID 33423669›Full record

ArticleBMC medical research methodology2021

Short-term real-time prediction of total number of reported COVID-19 cases and deaths in South Africa: a data driven approach.

Tarylee Reddy, Ziv Shkedy, Charl Janse van Rensburg, Henry Mwambi, Pravesh Debba, Khangelani Zuma, Samuel Manda

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Article in BMC medical research methodology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

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11citing papers in PubMed
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1 · What the graph read from it

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

Who cites it

11 citing papers in PubMed.

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  3. A reliable emergency logistics network for COVID-19 considering the uncertain time-varying demands.Transportation research. Part E, Logistics and transportation review · 2023
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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Tarylee ReddyBiostatistics Research Unit, South African Medical Research Council, Cape Town, South Africa. tarylee.reddy@mrc.ac.za.ORCID 0000-0002-9521-2692
Ziv ShkedyCenstat, Hasselt University, Hasselt, Belgium.
Charl Janse van RensburgBiostatistics Research Unit, South African Medical Research Council, Cape Town, South Africa.
Henry MwambiSchool of Mathematics, Statistics and Computer Science, University of KwaZulu Natal, Durban, South Africa.
Pravesh DebbaSmart Places Cluster, Council for Scientific and Industrial Research, Pretoria, South Africa.
Khangelani ZumaHuman and Social Capabilities Research Division, Human Science Research Council, Pretoria, South Africa.
Samuel MandaBiostatistics Research Unit, South African Medical Research Council, Cape Town, South Africa.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe rising burden of the ongoing COVID-19 epidemic in South Africa has motivated the application of modeling strategies to predict the COVID-19 cases and deaths. Reliable and accurate short and long-term forecasts of COVID-19 cases and deaths, both at the national and provincial level, are a key aspect of the strategy to handle the COVID-19 epidemic in the country.

methodsIn this paper we apply the previously validated approach of phenomenological models, fitting several non-linear growth curves (Richards, 3 and 4 parameter logistic, Weibull and Gompertz), to produce short term forecasts of COVID-19 cases and deaths at the national level as well as the provincial level. Using publicly available daily reported cumulative case and death data up until 22 June 2020, we report 5, 10, 15, 20, 25 and 30-day ahead forecasts of cumulative cases and deaths. All predictions are compared to the actual observed values in the forecasting period.

resultsWe observed that all models for cases provided accurate and similar short-term forecasts for a period of 5 days ahead at the national level, and that the three and four parameter logistic growth models provided more accurate forecasts than that obtained from the Richards model 10 days ahead. However, beyond 10 days all models underestimated the cumulative cases. Our forecasts across the models predict an additional 23,551-26,702 cases in 5 days and an additional 47,449-57,358 cases in 10 days. While the three parameter logistic growth model provided the most accurate forecasts of cumulative deaths within the 10 day period, the Gompertz model was able to better capture the changes in cumulative deaths beyond this period. Our forecasts across the models predict an additional 145-437 COVID-19 deaths in 5 days and an additional 243-947 deaths in 10 days.

conclusionsBy comparing both the predictions of deaths and cases to the observed data in the forecasting period, we found that this modeling approach provides reliable and accurate forecasts for a maximum period of 10 days ahead.

Indexed as

SARS-CoV-2COVID-19HumansLogistic ModelsModels, StatisticalSouth AfricaCOVID-19Logistic growth modelPhenomenological modelsPredictionRichards model

Identifiers

PMID33423669
PMCPMC7797353

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.