216-217 / 471
a
Results were not used in statistical analysis due to deviation from testing protocol
1
b
Repeatability Standard Deviation,
c
Among-Laboratory Standard Deviation,
d
Reproducibility Standard Deviation,
e
P
T
Value =Homogeneity test of laboratory PODs,
f
NA- laboratory results were not received
2
LCL – Lower Confidence Limit; UCL – Upper Confidence Limit
3
4
5
Table 2014.2A (cont’d)
: Comparative Results for the Detection of
Listeria monocytogenes
in Full Fat Cottage Cheese (4% Milk Fat) by the 3M
™
MDA
6
Listeriamonocytogenes
Method vs. AOAC OMA 993.12 in a Collaborative Study (High Inoculum Level)
7
Statistic
MPN/
Test Portion Laboratory
Candidate presumptive
(CP)
Candidate confirmed
(CC)
Candidate result (C)
Reference method
(R)
C vs. R
N
X
POD(CP)
N
X
POD(CC)
N
X
POD(C) N
X POD(R) dLPOD
(C,R)
dLPOD
(CP,CC)
4.83
3.30
7.07
1
12
12
1.00
12
12
1.00
12
12
1.00
12
12
1.00
0.00
0.00
2
12
12
1.00
12
12
1.00
12
12
1.00
12
12
1.00
0.00
0.00
3
12
12
1.00
12
12
1.00
12
12
1.00
12
12
1.00
0.00
0.00
4
a
NA
f
NA
NA
NA NA
NA
NA NA
NA
NA NA
NA
NA
NA
5
a
NA NA
NA
NA NA
NA
NA NA
NA
NA NA
NA
NA
NA
6
a
12
12
1.00
12
12
1.00
12
12
1.00
12
7
0.58
0.42
0.00
7
12
12
1.00
12
12
1.00
12
12
1.00
12
12
1.00
0.00
0.00
8
12
12
1.00
12
12
1.00
12
12
1.00
12
12
1.00
0.00
0.00
9
12
12
1.00
12
12
1.00
12
12
1.00
12
12
1.00
0.00
0.00
10
12
12
1.00
12
12
1.00
12
12
1.00
12
12
1.00
0.00
0.00
11
12
12
1.00
12
12
1.00
12
12
1.00
12
12
1.00
0.00
0.00
12
12
11
0.92
12
12
1.00
12
11
0.92
12
12
1.00
-0.08
-0.08
13
a
12
10
0.83
12
12
1.00
12
10
0.83
12
12
1.00
-0.17
-0.17
14
12
12
1.00
12
12
1.00
12
12
1.00
12
12
1.00
0.00
0.00
15
12
10
0.83
12
12
1.00
12
10
0.83
12
12
1.00
-0.17
-0.17
16
a
NA NA
NA
NA NA
NA
NA NA
NA
NA NA
NA
NA
NA
Estimate
All
132 129
0.98
132 132
1.00
132 129
0.98
132 132
1.00
-0.02
-0.02
LCL
0.94
0.97
0.94
0.97
-0.06
-0.06
UCL
0.99
1.00
0.99
1.00
0.01
0.01
s
r
b
0.15
0.00
0.15
0.00
LCL
0.13
0.00
0.13
0.00
UCL
0.17
0.16
0.17
0.16
s
L
c
0.03
0.00
0.03
0.00
LCL
0.00
0.00
0.00
0.00
Candidates for 2016 Method of the Year
173