214-215 / 471
1
2
Table 2014.2A (cont’d.)
: Comparative Results for the Detection of
Listeriamonocytogenes
in Full Fat Cottage Cheese (4% Milk Fat) by the 3M
™
MDA
3
Listeriamonocytogenes
Method vs. AOAC OMA 993.12 in a Collaborative Study (Low Inoculum Level)
4
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)
0.80
0.63
1.00
1
12
6
0.50
12
4
0.33
12
4
0.33
12
6
0.50
-0.17
0.08
2
12
7
0.58
12
7
0.58
12
7
0.58
12
7
0.58
0.00
0.00
3
12
8
0.67
12
7
0.58
12
7
0.58
12
7
0.58
0.09
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
7
0.58
12
12
1.00
12
7
0.58
12
2
0.17
0.41
-0.42
7
12
4
0.33
12
4
0.33
12
4
0.33
12
10
0.83
-0.50
0.00
8
12
6
0.50
12
7
0.58
12
6
0.50
12
7
0.58
-0.08
-0.08
9
12
4
0.33
12
4
0.33
12
4
0.33
12
8
0.67
0.34
0.00
10
12
6
0.50
12
6
0.60
12
6
0.60
12
7
0.58
0.08
0.00
11
12
6
0.50
12
6
0.60
12
6
0.60
12
5
0.42
0.08
0.00
12
12
6
0.50
12
6
0.50
12
6
0.50
12
5
0.42
0.08
0.00
13
a
12
4
0.33
12
7
0.58
12
4
0.33
12
7
0.58
-0.25
-0.25
14
12
6
0.50
12
6
0.50
12
6
0.50
12
6
0.50
0.00
0.00
15
12
7
0.58
12
7
0.58
12
7
0.58
12
5
0.42
0.16
0.00
Estimate
All
132 66
0.50
132 64
0.48
132 63
0.48
132 73
0.55
-0.08
0.02
LCL
0.41
0.40
0.39
0.47
-0.20
-0.11
UCL
0.59
0.57
0.57
0.64
0.05
0.14
s
r
b
0.51
0.51
0.51
0.50
LCL
0.45
0.45
0.45
0.45
UCL
0.52
0.52
0.52
0.52
s
L
c
0.00
0.00
0.00
0.00
LCL
0.00
0.00
0.00
0.00
UCL
0.17
0.15
0.14
0.18
s
R
d
0.51
0.51
0.51
0.50
UCL
0.46
0.46
0.46
0.45
LCL
0.52
0.52
0.52
0.52
P
T
e
0.9123
0.8762
0.9080
0.6678
Candidates for 2016 Method of the Year
172