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© 2012 AOAC INTERNATIONAL

AOAC O

FFICIAL

M

ETHODS

OF

A

NALYSIS

(2012)

M

ICROBIOLOGY

G

UIDELINES

Appendix J, p. 19

ANNEX G

Data Summary Table Template and Example for Qualitative Method Collaborative Studies

Table G1. Comparative results for the detection of

Listeria innocua

in raw shrimp by the candidate and reference methods in an interlaboratory study

Candidate presumptive (CP)

Candidate confirmed (CC)

Candidate result (C)

Reference method (R)

C vs R CP vs CC

Statistic

Concn,

MPN/25 g Lab

N

x

POD(CP)

N

x

POD(CC)

N

x

POD(C)

N

x

POD

(R)

dLPOD

(C,R)

dLPOD

(CP,CC)

01

12

0

0.00

12

0

0.00

12

0

0.00

12

0 0.00

0.00

0.00

02

12

0

0.00

12

0

0.00

12

0

0.00

12

0 0.00 0.00

0.00

03

12

0

0.00

12

0

0.00

12

0

0.00

12

0 0.00 0.00

0.00

04

12

0

0.00

12

0

0.00

12

0

0.00

12

0 0.00 0.00

0.00

05

12

0

0.00

12

0

0.00

12

0

0.00

12

0 0.00 0.00

0.00

06

12

0

0.00

12

0

0.00

12

0

0.00

12

0 0.00 0.00

0.00

07

12

0

0.00

12

0

0.00

12

0

0.00

12

0 0.00 0.00

0.00

08

12

0

0.00

12

0

0.00

12

0

0.00

12

0 0.00 0.00

0.00

09

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

Estimate 0.00

All

120

0

0.00

120

0

0.00

120

0

0.00

120

0 0.00 0.00

0.00

LCL

0.00

0.00

0.00

0.00

0.00 –1.00

–1.00

UCL

0.02

0.17

0.03

0.03

0.03

0.03

0.03

s

r

0.00

0.00

0.00

0.00

LCL

0.00

0.00

0.00

0.00

UCL

0.17

17

0.17

0.17

s

L

0.00

0.00

0.00

0.00

LCL

0.00

0.00

0.00

0.00

UCL

0.03

0.03

3.00

0.03

s

R

0.00

0.00

0.00

0.00

LCL

0.00

0.00

0.00

0.00

UCL

0.24

0.24

0.24

0.24

P

T

1.0000

1.0000

1.0000

1.0000

01

12

8

0.67

12

8

0.67

12

8

0.67

12

7 0.58 0.08

0.00

02

12

9

0.75

12

8

0.67

12

8

0.67

12

7 0.58 0.08

0.08

03

12

8

0.67

12

8

0.67

12

8

0.67

12

6 0.50 0.17

0.00

04

12

6

0.50

12

6

0.50

12

6

0.50

12

10 0.83 –0.33

0.00

05

12

7

0.58

12

7

0.58

12

7

0.58

12

7 0.58 0.00

0.00

06

12

6

0.50

12

6

0.50

12

6

0.50

12

8 0.67 –0.17

0.00

07

12

8

0.67

12

8

0.67

12

8

0.67

12

6 0.50 0.17

0.00