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. 2021 May 10;294:114182. doi: 10.1016/j.jviromet.2021.114182

Table 1.

Comparison of test performance of the Aptima SARS-CoV-2 TMA with the RealStar SARS-CoV-2 RT-PCR assay.

RealStar SARS-CoV-2

Aptima SARS-CoV-2 Positive Negative Kappa (κ)a (±95 % CI)b PPAc NPAd
Positive 66 0 0.921 (1.000−0.834) 95.7 100
Negative 3 25
a

Cohen’s Kappa (κ) defines the overall agreement with values categorized as follows: >0.90, almost perfect; 0.90−0.80, strong; 0.79−0.60, moderate; 0.59−0.40, weak; 0.39−0.21, minimal; 0.20−0, none.

b

±, upper/lower 95 % confidence interval (CI).

c

Positive percent agreement (PPA).

d

Negative percent agreement (NPA).