Evidence map›Paper›PMID 33914758›Full record

ArticlePloS one2021

Prediction of confirmed cases of and deaths caused by COVID-19 in Chile through time series techniques: A comparative study.

Claudia Barría-Sandoval, Guillermo Ferreira, Katherine Benz-Parra, Pablo López-Flores

Open access · goldAbstract readComparative Study
In one paragraph

Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.9field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 25 citations in OpenAlex.

  1. Improving outbreak forecasts through model augmentation.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  10. A log linear Poisson autoregressive model to understand COVID-19 dynamics in Saudi Arabia.Beni-Suef University journal of basic and applied sciences · 2022
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 1 country.

Claudia Barría-SandovalNursing School, Universidad de las Américas, Concepción, Chile.
Guillermo FerreiraDepartment of Statistics, Universidad de Concepción, Concepción, Chile.
Katherine Benz-ParraNursing School, Universidad de las Américas, Concepción, Chile.
Pablo López-FloresDepartment of Primary Health Care, Servicio de Salud de Concepción, Concepcion, Chile.
University of Concepción · CLHospital Regional de Concepción · CLMillennium Science Initiative · CL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChile has become one of the countries most affected by COVID-19, a pandemic that has generated a large number of cases worldwide. If not detected and treated in time, COVID-19 can cause multi-organ failure and even death. Therefore, it is necessary to understand the behavior of the spread of COVID-19 as well as the projection of infections and deaths. This information is very relevant so that public health organizations can distribute financial resources efficiently and take appropriate containment measures. In this research, we compare different time series methodologies to predict the number of confirmed cases of and deaths from COVID-19 in Chile.

methodsThe methodology used in this research consisted of modeling cases of both confirmed diagnoses and deaths from COVID-19 in Chile using Autoregressive Integrated Moving Average (ARIMA henceforth) models, Exponential Smoothing techniques, and Poisson models for time-dependent count data. Additionally, we evaluated the accuracy of the predictions using a training set and a test set.

resultsThe dataset used in this research indicated that the most appropriate model is the ARIMA time series model for predicting the number of confirmed COVID-19 cases, whereas for predicting the number of deaths from COVID-19 in Chile, the most suitable approach is the damped trend method.

conclusionThe ARIMA models are an alternative to modeling the behavior of the spread of COVID-19; however, depending on the characteristics of the dataset, other methodologies can better predict the behavior of these records, for example, the Holt-Winter method implemented with time-dependent count data.

Indexed as

AlgorithmsChileCOVID-19ForecastingHumansModels, StatisticalPublic HealthSARS-CoV-2

Identifiers

PMID33914758
PMCPMC8084230
OpenAlexW3159752838

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

None linked

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.