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Table 2 Two-by-two tabulation illustrating the way recordings in a National Database (ND) compare with recordings by the farmer (FD)

From: Increases in the completeness of disease records in dairy databases following changes in the criteria determining whether a record counts as correct

 

FD +

FD -

Total

ND +

a (FD+/ND+)

b (FD-/ND+)

a + b

ND -

c (FD+/ND-)

d* (FD-/ND-)

c + d

Total

a + c

b + d

 
  1. The table is used to calculate the completeness of ND recordings as compared with FD recordings.
  2. *d could not be assessed.
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Acta Veterinaria Scandinavica

ISSN: 1751-0147