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. 2021 Nov 3;9(3):e00468-21. doi: 10.1128/Spectrum.00468-21

TABLE 2.

Detection of SARS-CoV-2 viral RNA in NPS and saliva specimensa

Saliva NPS (n, %)
 Agreement (%) Kappa (κ) (95% CI) P value
Positive Negative Total
Positive 184 (80.3) 2 (0.5) 186 (31.2) 92.11 0.83 (0.78–0.87) <0.001
Negative 45 (19.7) 365 (99.5) 410 (68.8)
Total 229 (100) 367 (100) 596 (100)
a

Total n = 596.