Evaluation of the CoronApp Colombia Digital Surveillance System, Epidemiological Periods VII to X of 2020.
DOI:
https://doi.org/10.33610/28059611.185Keywords:
Public health surveillance, information technology, Covid-19, RT-PCR, SARS-CoV2Abstract
Introduction. Evaluation of surveillance systems provides evidence for the usefulness of disease control information. Public health surveillance requires implementing alternatives that enable community participation. We had an interactive surveillance system that promotes population connectivity through information technologies in order to provide relevant data within the context of the COVID-19 pandemic. The objective of this study was to estimate the attributes of the digital surveillance system CoronApp Colombia, specifically its sensitivity and positive predictive value during Epidemiological Periods (EP) VII to X of 2020. Materials and methods. This study summarizes an evaluation of the digital surveillance system conducted as part of innovative surveillance strategies based on the evaluation attributes of the public health surveillance systems considered by CDC. The study population included cases registered in SisMuestras and CoronApp during EP VII to X of 2020 with RT-PCR or antigen laboratory confirmation for SARS-CoV-2. Results. During EP VII to X of 2020, 3 595 412 users were registered in CoronApp. According to the classification of cases in CoronApp and the results of RT-PCR and antigen tests, the CoronApp application demonstrated a sensitivity ranging from 97.1% to 98.6%. The highest sensitivity was observed in period VII. The positive predictive value during the study period was estimated between 35.3% and 42.5%. Conclusions. The estimated sensitivity during 2020 EP VII to X was higher than 95%, which can be considered optimal for a public health surveillance system.References
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