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. 2022 Jun:3:138-142.
doi: 10.1016/j.ijregi.2022.03.018. Epub 2022 Apr 4.

Predictive Ability of Factors in diagnosing COVID-19: Experiences from Qatar's Primary Care Settings

Dr Mohamed Ahmed Syed  1 , Dr Ahmed Sameer Al Nuaimi  1
Affiliations

Predictive Ability of Factors in diagnosing COVID-19: Experiences from Qatar's Primary Care Settings

Dr Mohamed Ahmed Syed et al. IJID Reg. 2022 Jun.

Abstract

Objective: The aim of this paper is to establish the predictive ability of demographic and clinical factors in diagnosing Coronavirus Disease 2019 (COVID-19) in Qatar's publicly funded primary care settings.

Methods: Reverse transcription polymerase chain reaction (rt-PCR) test and COVID-19 screening data (COVID-19 related factors) were extracted from electronic medical records for all individuals who visited a primary health care centre in Qatar between 15th March to 15th June 2020. Data analysis was undertaken to assess the validity of individual factors in predicting a positive rt-PCR test.

Results: Fever/history of fever [N= 1471 (54.7%); OR 4.6 (95% CI 4.16 - 5.08)], followed by cough [N=1020 (37.9%); OR 1.82 (95% CI 1.65 - 2)] and headache [N=372 (13.8%); OR 1.45 (95% CI 1.27 - 1.67)] were the most frequently reported clinical symptoms amongst individuals who tested positive for Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV2) infection by rt-PCR. Only five factors, fever/history of fever, cough, working/living in an area reporting local transmission, gender and headache (ranked according to predictive power), were found to be statistically significant. Fever/history of fever alone had a specificity of 79.2% and it gradually increased to 99.9% in combination with runny nose, cough, male gender and age ≥ 50.

Conclusions: The study identified predictive ability of factors in diagnosing COVID-19, individually and in combination. It proposes a scoring system for use in publicly funded primary care settings in Qatar without an rt-PCR test, thus enabling early isolation and treatment where necessary. Further similar studies are needed as newer variations of SARS-CoV2 are continuously emerging to ensure its accuracy.

Keywords: COVID-19; Primary care; Qatar; SARS-CoV2; Screening tools.

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Conflict of interest statement

All authors declare no conflict of interest.

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References

    1. Aldobyany A, Touman A, Ghaleb N, Alsaggaf R, Murtaza N, Hamada A, Alknawy M, AS Albanna, Alqurashi E. Correlation Between the COVID-19 Respiratory Triage Score and SARS-COV-2 PCR Test. Front. Med. 2020;7 - PMC - PubMed
    1. Arevalo-Rodriguez I, Buitrago-Garcia D, Simancas-Racines D, et al. False-negative results of initial RT-PCR assays for COVID-19: a systematic review. medRxiv. 2020 (published online Aug 13.) (preprint) - PMC - PubMed
    1. Cadegiani FA, Zimerman RA, Campello de Souza B, et al. The AndroCoV Clinical Scoring for COVID-19 Diagnosis: A Prompt, Feasible, Costless, and Highly Sensitive Diagnostic Tool for COVID-19 Based on a 1757-Patient Cohort. Cureus. 2021;13(1):e12565. doi: 10.7759/cureus.12565. Published 2021 Jan 7. - DOI - PMC - PubMed
    1. Centers for Disease Control and Prevention. CDC diagnostic tests for COVID-19. Available at https://www.cdc.gov/coronavirus/2019-ncov/lab/testing.html [Accessed 20th May 2021]
    1. British Broadcasting Corporation (BBC). Coronavirus declared global health emergency by WHO. Available at https://www.bbc.com/news/world-51318246 [Accessed 20th May 2021]