342-343 / 1195
Revised Mar 2014
27
Table 2013.2A
: Comparative Results for the Detection of
Salmonella
spp. in Raw Ground Beef (25 g) by the 3M MDA
Salmonella
Method vs. USDA/MLG-FSIS
1
in an Inter-laboratory Study(Un-inoculated Control)
2
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)
0.00
0.00
0.11
1
12
0
0.00
12
0
0.00
12
0
0.00
12
0
0.00
0.00
0.00
2
12
0
0.00
12
0
0.00
12
0
0.00
12
0
0.00
0.00
0.00
3
b
NA
i
NA
NA
NA NA
NA
NA NA
NA
NA NA
NA
NA
NA
4
b
NA NA
NA
NA NA
NA
NA NA
NA
NA NA
NA
NA
NA
5
b
NA NA
NA
NA NA
NA
NA NA
NA
NA NA
NA
NA
NA
6
b
NA NA
NA
NA NA
NA
NA NA
NA
NA NA
NA
NA
NA
7
b
NA NA
NA
NA NA
NA
NA NA
NA
NA NA
NA
NA
NA
8
b
NA NA
NA
NA NA
NA
NA NA
NA
NA NA
NA
NA
NA
9
12
0
0.00
12
0
0.00
12
0
0.00
12
0
0.08
0.00
0.00
10
12
0
0.00
12
0
0.00
12
0
0.08
12
0
0.00
0.00
0.00
11
12
0
0.00
12
0
0.00
12
0
0.00
12
0
0.00
0.00
0.00
12
a
12
7
0.58
12
0
0.00
12
0
0.00
12
2
0.17
-0.17
0.58
13
12
0
0.00
12
0
0.00
12
0
0.00
12
0
0.00
0.00
0.00
14
12
0
0.00
12
0
0.00
12
0
0.00
12
0
0.00
0.00
0.00
15
12
1
0.08
12
0
0.00
12
0
0.00
12
0
0.00
0.00
0.08
16
a
12
4
0.33
12
0
0.00
12
0
0.00
12
1
0.08
-0.08
0.33
17
12
0
0.00
12
0
0.00
12
0
0.00
12
0
0.00
0.00
0.00
18
a
12
12
1.00
12
2
0.17
12
2
0.17
12
0
0.00
0.17
0.83
19
a
12
9
0.75
12
0
0.00
12
0
0.00
12
2
0.17
-0.17
0.75
20
12
0
0.00
12
0
0.00
12
0
0.00
12
0
0.00
-0.00
0.00
Estimate
All
120
1
0.01
120
0
0.00
120
0
0.00
120
0
0.00
0.00
0.01
LCL
c
0.00
0.00
0.00
0.00
-0.03
-0.02
UCL
d
0.05
0.03
0.03
0.03
0.03
0.05
s
r
e
0.09
0.00
0.00
0.00
LCL
0.08
0.00
0.00
0.00