10 / 199
B
ird
et al
.:
J
ournal of
aoaC i
nternational
V
ol
.
99, n
o
.
4, 2016
987
Table 2016.01D. Comparative results for the detection of
Salmonella
at three inoculum levels in peanut butter by the
3M MDA 2 –
Salmonella
method versus FDA BAM reference method in a collaborative study
Statistic
Matrix and
inoculation
level
Laboratory
Candidate
presumptive
Candidate
confirmed
Candidate
result
Reference
method
Candidate versus
reference
N X
POD
CP
N X
POD
CC
N X
POD
C
N X
POD
R
dLPOD
C
dLPOD
CP
Creamy
peanut
butter,
uninoculated
control
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
a
12 1 0.08 12 2 0.17 12
1 0.08 12
0 0.00 0.08 −0.09
4
12 0 0.00 12 0 0.00 12
0 0.00 12
0 0.00 0.00
0.00
5
b
NA
c
NA NA NA NA NA NA NA NA NA NA NA NA
NA
6
12 0 0.00 12 0 0.00 12
0 0.00 12
0 0.00 0.00
0.00
7
a
12 1 0.08 12 0 0.00 12
0 0.00 12
0 0.00 0.00
0.08
8
12 0 0.00 12 0 0.00 12
0 0.00 12
0 0.00 0.00
0.00
9
12 0 0.00 12 0 0.00 12
0 0.00 12
0 0.00 0.00
0.00
10
12 0 0.00 12 0 0.00 12
0 0.00 12
0 0.00 0.00
0.00
11
b
NA NA NA NA NA NA NA NA NA NA NA NA NA
NA
12
12 0 0.00 12 0 0.00 12
0 0.00 12
0 0.00 0.00
0.00
13
12 2 0.17 12 0 0.00 12
0 0.00 12
0 0.00 0.17
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 0 0.00 12 0 0.00 12
0 0.00 12
0 0.00 0.00
0.00
16
d
NA NA NA NA NA NA NA NA NA NA NA NA NA
NA
Estimate
All
132 2 0.01 132 0 0.00 132
0 0
.00 132 0 0.00 0.000.01
LCL
e
0.00
0.00
0.00
0.00 −0.03 −0.01
UCL
f
0.05
0.03
0.03
0.03 0.03
0.05
s
r
0.11
0.00
0.00
0.00
LCL
0.10
0.00
0.00
0.00
UCL
0.16
0.16
0.16
0.16
s
L
0.04
0.00
0.00
0.00
LCL
0.01
0.00
0.00
0.00
UCL
0.08
0.16
0.16
0.16
s
R
0.12
0.00
0.00
0.00
UCL
0.11
0.00
0.00
0.00
LCL
0.15
0.23
0.23
0.23
P
T
0.0265
1.0000
1.0000
1.0000
Creamy
peanut
butter, low
inoculum
level
1
12 6 0.50 12 6 0.50 12
6 0.50 12
6 0.50 0.00
0.00
2
12 8 0.66 12 8 0.66 12
8 0.66 12
6 0.50 0.16
0.00
3
a
12 5 0.42 12 6 0.50 12
5 0.42 12
5 0.42 0.00 −0.08
4
12 6 0.50 12 6 0.50 12
6 0.50 12
5 0.42 0.08
0.00
5
b
NA NA NA NA NA NA NA NA NA NA NA NA NA
NA
6
12 9 0.75 12 8 0.66 12
8 0.66 12
8 0.66 0.00
0.09
7
a
12 10 0.83 12 8 0.66 12
8 0.66 12
7 0.58 0.08
0.17
8
12 6 0.50 12 6 0.50 12
6 0.50 12
5 0.42 0.08
0.00
9
12 7 0.58 12 7 0.58 12
7 0.58 12
8 0.66 −0.08 0.00
10
12 7 0.58 12 7 0.58 12
7 0.58 12
5 0.42 0.16
0.00
11
b
NA NA NA NA NA NA NA NA NA NA NA NA NA
NA
12
12 5 0.42 12 5 0.42 12
5 0.42 12
6 0.50 −0.08 0.00
13
12 9 0.75 12 8 0.66 12
8 0.66 12
5 0.42 0.24
0.09
14
12 7 0.58 12 7 0.58 12
7 0.58 12
8 0.66 −0.08 0.00
15
12 8 0.66 12 8 0.66 12
8 0.66 12
6 0.50 0.16
0.00
16
d
NA NA NA NA NA NA NA NA NA NA NA NA NA
NA