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. 2020 Sep;37(9):398–404. doi: 10.12788/fp.0045

TABLE.

Artificial Intelligence Algorithm Determinationsa

X-ray Types COVID-19 Non-COVID-19 Normal Determination
Normal
 1 0 0 1 True negative
 2 0 0 1 True negative
 3 0 0 1 True negative
 4 0 0 1 True negative
 5 0 0 1 True negative
 6 0 0 1 True negative
 7 0 0 1 True negative
 8 0 0 1 True negative
 9 0 0 1 True negative
 10 0 0 1 True negative

COVID-19
 1 1 0 0 True positive
 2 1 0 0 True positive
 3 1 0 0 True positive
 4 1 0 0 True positive
 5 1 0 0 True positive
 6 1 0 0 True positive
 7 1 0 0 True positive
 8 1 0 0 True positive
 9 1 0 0 True positive
 10 1 0 0 True positive

Non-COVID-19
 1 0 1 0 True negative
 2 0 1 0 True negative
 3 0 1 0 True negative
 4 0 1 0 False positive
 5 1 0 0 True negative
 6 0 1 0 True negative
 7 0 1 0 True negative
 8 0 1 0 True negative
 9 0 0 1 True negative
 10 0 1 0 True negative

Sensitivity (recall) 100% True positive 10

Specificity 95% True negative 19

Accuracy 97% False positive 1

Positive predictive value (precision) 91% False negative 0

Negative predictive value 100%
a

1 = positive; 0 = negative.