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. 2021 Jan 27;14:171–180. doi: 10.2147/JMDH.S290711

Table 2.

Comparative Diagnostic Performance of Test Kit “A” with RT-PCR, 2020, Addis Ababa, Ethiopia

Test Kit A RT-PCR Totals
Absent Present
Test positive 4 52 56
Test negative 111 33 144
Total 115 85 200
Estimated Value 95% Confidence Interval
Lower Limit Upper Limit
Sensitivity 0.611 0.499 0.714
Specificity 0.965 0.908 0.989
True positive (positive predictive value) 0.929 0.819 0.977
True negative (negative predictive value) 0.771 0.692 0.835