Review Book

Table 2020.1B : Summary of results for the detection of Salmonella in raw ground beef (80% lean) Method a GENE-UP ® Salmonella (SLM) w/ Traditional Confirmation

Extraction Method Inoculation Level

Non-inoculated

Low

High

Candidate Presumptive Positive/ Total # of Samples Analyzed Candidate Presumptive LPOD (CP) Candidate Confirmed Positive/ Total # of Samples Analyzed Candidate Confirmed LPOD (CC) Candidate Confirmed Positive/ Total # of Samples Analyzed Candidate Presumptive Positive that Confirmed LPOD (C) Positive Reference Samples/ Total # of Samples Analyzed

0/132

51/132

132/132

0.00 (0.00, 0.03)

0.39 (0.33, 0.44)

1.00 (0.95, 1.00)

0/132

51/132

130/132

0.00 (0.00, 0.03)

0.38 (0.31, 0.46)

0.98 (0.95, 1.00)

0/132

49/132

130/132

0.00 (0.00, 0.03)

0.37 (0.31, 0.43)

0.98 (0.95, 1.00)

0/132

51/132

127/132

Reference LPOD (R)

0.00 (0.00, 0.03)

0.39 (0.27, 0.51)

0.96 (0.89, 1.00)

dLPOD C (Candidate vs. Reference) b

0.00 (-0.03, 0.03)

-0.02 (-0.15, 0.12)

0.02 (-0.03, 0.09)

s r c

0.00 0.00 0.00

0.50 0.00 0.50

0.12 0.00 0.12

s L d s R e

dLPOD CP (Candidate Presumptive vs. Candidate Confirmed) b

0.00 (-0.02, 0.02)

0.00 (-0.04, 0.04)

0.02 (-0.01, 0.04)

SE (dLPOD) f

0.01 0.00 0.00 0.00

0.02 0.50 0.00 0.50

0.01 0.00 0.00

s r

s L s R

0.00 a Results include 95% Confidence Intervals; b A confidence interval for dLPOD that does not contain the value 0 indicates a statistically significant difference between the two methods; , c Repeatability Standard Deviation, d Among-Laboratory Standard Deviation, e Reproducibility Standard Deviation, f Standard error

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