Statistics Meeting Book (August 15, 2018)
ANNEX D Summary Data Table for Qualitative Method Single Laboratory Studies
Table D1. Comparative results for the detection of Listeria innocua in raw shrimp
Concentration
Candidate presumptive (CP)
Candidate confirmed (CC)
Candidate method (C)
Reference method (R)
C vs R CP vs CC
Statistic
MPN/25 g
N
x POD(CP)
N
x POD(CC)
N
x POD(C)
N
x POD(R)
dPOD(C,R) dPOD(CP,CC)
Estimate
0.00
20
0
0.00
20
0
0.00
20
0 0.00
20
0 0.00
0.00
0.00
LCL
0.00
0.00
0.00
0.00
0.00
–0.16
–0.16
UCL
1.50
0.16
0.16
0.16
0.16
0.16
0.16
Estimate
0.80
20
12 0.60
20
10
0.50
20
10 0.50
20
11 0.55
–0.05
0.10
LCL
0.43
0.39
0.30
0.30
0.34
–0.33
–0.19
UCL
1.39
0.78
0.70
0.70
0.74
0.24
0.37
Estimate
3.00
20
20 1.00
20
20
1.00
20
20 1.00
20
19 0.95
0.05
0.00
LCL
1.58
0.84
0.84
0.84
0.76
–0.12
–0.16
UCL
5.68
1.00
1.00
1.00
1.00
0.24
0.16
Estimate
17.00
20
20 1.00
20
20
1.00
20
20 1.00
20
20 1.00
0.00
0.00
LCL
0.27
0.84
0.84
0.84
0.84
–0.16
–0.16
UCL
1060
1.00
1.00
1.00
1.00
0.16
0.16
ANNEX E Example of Graph of POD Values from Qualitative Method Single Laboratory Data Figure XXX
Notes : ( 1 ) The concentration plotted should be MPN/test portion. ( 2 ) Confidence intervals may also be plotted. ( 3 ) Collaborative data should be plotted analogously.
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