Review Book
Table 2020.2A: Comparative results for the detection of Salmonella in raw ground beef (80% lean) test portions by the GENE-UP ® Salmonella (SLM) 1 method with alternative confirmation vs. MLG 4.10 reference method in a collaborative study (non-inoculated control) 2
Candidate presumptive (CP)
Candidate confirmed (CC)
Candidate result (C)
Reference method (R)
C vs. R CP vs. CC
Statistic
Matrix
Laboratory
POD (CP) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00
POD (CC) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
POD (C) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
POD (R) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00
dLPOD (C,R)
dLPOD (CP,CC)
N
X
N
X
N
X
N
X
1 a
12 12 12 12 12 12 12 12 12 12 12 12 12
0 0 0 0 0 0 0 0 0 1 0 0 0
12 12 12 12 12 12 12 12 12 12 12 12 12
0 0 0 0 0 0 0 0 0 0 0 0 0
12 12 12 12 12 12 12 12 12 12 12 12 12
0 0 0 0 0 0 0 0 0 0 0 0 0
12 12 12 12 12 12 12 12 12 12 12 12 12
0 0 0 0 0 0 0 0 0 1 0 0 0
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -0.08 0.00 0.00 0.00
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00
2 3 4 5 6 7 8 9
Raw ground beef (80% lean)
10 a
11 12 13
Estimate
All
132
0
0.00 0.00 0.03
132
0
0.00 0.00 0.03
132
0
0.00 0.00 0.03
132
0
0.00 0.00 0.03
0.00 -0.03 0.03 0.00 0.00 0.00 N/A
0.00 -0.02 0.02 0.00 0.00 0.00
LCL UCL
s r s L s R
b
c d
SE e
0.01 a Collaborator Data Not Included in Statistical Analysis, b Repeatability Standard Deviation, c Among-Laboratory Standard Deviation, d Reproducibility Standard Deviation, e Standard Error
3 4 5 6
N - Number of Test Portions; X – Number of Positive Test Portions; LCL – Lower Confidence Limit; UCL – Upper Confidence Limit
33
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