Table 2.
Sensitivity and Specificity of Nucleic Acid Amplification Tests in Each Specimen Based on Nasopharyngeal Swab as a Reference.
| Sensitivity | Specificity | |
|---|---|---|
| Saliva collected from patients without cough | 0.90 (95% confidence interval (CI), 0.85-0.93) | 0.98 (95% CI, 0.93-1.00) |
| Saliva collected from patients with cough | 0.99 (95% CI, 0.94-1.00) | 0.96 (95% CI, 0.83-0.99) |
| Oropharyngeal swab | 0.76 (95% CI, 0.58-0.88) | 0.98 (95% CI, 0.96-0.99) |
| Nasal vestibular swab | 0.89 (95% CI, 0.83-0.94) | 1.00 (95% CI, 0.99-1.00) |
| Middle turbinate swab | 0.95 (95% CI, 0.83-0.99) | 1.00 (95% CI, 0.89-1.00) |
| Nasal vestibular and oropharyngeal swab | 0.95 (95% CI, 0.69-0.99) | 0.99 (95% CI, 0.92-1.00) |
Reproduced from Hanson KE, Caliendo AM, Arias CA, et al. The Infectious Diseases Society of America Guidelines on the Diagnosis of COVID-19: molecular diagnostic testing. Clin Infect Dis. 2021:ciab048 (3) with permission.