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Oliveira MC, Scharan KO, Thomés BI, Bernardelli RS, Reese FB, Kozesinski-Nakatani AC, Martins CC, Lobo SMA, Réa-Neto Á. Diagnostic accuracy of a set of clinical and radiological criteria for screening of COVID-19 using RT-PCR as the reference standard. BMC Pulm Med 2023; 23:81. [PMID: 36894945 PMCID: PMC9997428 DOI: 10.1186/s12890-023-02369-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 02/22/2023] [Indexed: 03/11/2023] Open
Abstract
BACKGROUND The gold-standard method for establishing a microbiological diagnosis of COVID-19 is reverse-transcriptase polymerase chain reaction (RT-PCR). This study aimed to evaluate the accuracy, sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of a set of clinical-radiological criteria for COVID-19 screening in patients with severe acute respiratory failure (SARF) admitted to intensive care units (ICUs), using reverse-transcriptase polymerase chain reaction (RT-PCR) as the reference standard. METHODS Diagnostic accuracy study including a historical cohort of 1009 patients consecutively admitted to ICUs across six hospitals in Curitiba (Brazil) from March to September, 2020. The sample was stratified into groups by the strength of suspicion for COVID-19 (strong versus weak) using parameters based on three clinical and radiological (chest computed tomography) criteria. The diagnosis of COVID-19 was confirmed by RT-PCR (referent). RESULTS With respect to RT-PCR, the proposed criteria had 98.5% (95% confidence interval [95% CI] 97.5-99.5%) sensitivity, 70% (95% CI 65.8-74.2%) specificity, 85.5% (95% CI 83.4-87.7%) accuracy, PPV of 79.7% (95% CI 76.6-82.7%) and NPV of 97.6% (95% CI 95.9-99.2%). Similar performance was observed when evaluated in the subgroups of patients admitted with mild/moderate respiratory disfunction, and severe respiratory disfunction. CONCLUSION The proposed set of clinical-radiological criteria were accurate in identifying patients with strong versus weak suspicion for COVID-19 and had high sensitivity and considerable specificity with respect to RT-PCR. These criteria may be useful for screening COVID-19 in patients presenting with SARF.
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Affiliation(s)
- Mirella Cristine Oliveira
- Center for Studies and Research in Intensive Care Medicine - CEPETI, Monte Castelo Street, 366, Curitiba, Paraná, 82590-300, Brazil.,Complexo Hospitalar do Trabalhador (CHT), República Argentina Street, 4406, Curitiba, Paraná, 81050-000, Brazil
| | - Karoleen Oswald Scharan
- Center for Studies and Research in Intensive Care Medicine - CEPETI, Monte Castelo Street, 366, Curitiba, Paraná, 82590-300, Brazil
| | - Bruna Isadora Thomés
- Center for Studies and Research in Intensive Care Medicine - CEPETI, Monte Castelo Street, 366, Curitiba, Paraná, 82590-300, Brazil
| | - Rafaella Stradiotto Bernardelli
- Center for Studies and Research in Intensive Care Medicine - CEPETI, Monte Castelo Street, 366, Curitiba, Paraná, 82590-300, Brazil.,School of Medicine and Life Sciences, Pontifical Catholic University of Paraná, Imaculada Conceição Street, 1155, Curitiba, Paraná, 80215-901, Brazil
| | - Fernanda Baeumle Reese
- Center for Studies and Research in Intensive Care Medicine - CEPETI, Monte Castelo Street, 366, Curitiba, Paraná, 82590-300, Brazil.,Complexo Hospitalar do Trabalhador (CHT), República Argentina Street, 4406, Curitiba, Paraná, 81050-000, Brazil
| | - Amanda Christina Kozesinski-Nakatani
- Center for Studies and Research in Intensive Care Medicine - CEPETI, Monte Castelo Street, 366, Curitiba, Paraná, 82590-300, Brazil.,Hospital Santa Casa de Curitiba, Praça Rui Barbosa, 694, Curitiba, Paraná, 80010-030, Brazil
| | - Cintia Cristina Martins
- Center for Studies and Research in Intensive Care Medicine - CEPETI, Monte Castelo Street, 366, Curitiba, Paraná, 82590-300, Brazil.,Complexo Hospitalar do Trabalhador (CHT), República Argentina Street, 4406, Curitiba, Paraná, 81050-000, Brazil
| | - Suzana Margareth Ajeje Lobo
- Departament of Medicine, São José do Rio Preto Medical School, Brigadeiro Faria Lima avenue, 5416, São José do Rio Preto, São Paulo, 15090-000, Brazil
| | - Álvaro Réa-Neto
- Center for Studies and Research in Intensive Care Medicine - CEPETI, Monte Castelo Street, 366, Curitiba, Paraná, 82590-300, Brazil. .,Internal Medicine Department, Hospital de Clínicas, Federal University of Paraná, General Carneiro Street, 181, Curitiba, Paraná, 80060-900, Brazil.
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