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Table 4 Titer estimation for homogeneous fluorescence pattern

From: Performance analysis of automated evaluation of antinuclear antibody indirect immunofluorescent tests in a routine setting

Homogeneous (n = 147)

Visual evaluation (observer 1)

1/100

1/320

1/1000

>1/1000

EUROPattern (adjusted) (EPa) software

 1/100

87

3

1

0

 1/320

4

19

6

0

 1/1000

1

9

13

0

 > 1/1000

0

0

3

1

Same titer (n = 120)

 Overall concordance

81.6%

   

Difference of ≤ 1 titer step (n = 145)

 Overall concordance

98.6%

   
  1. Bold values indicate 100% agreement between visual observation and EUROPattern software. Italic values indicate one titer step difference between visual observation and EUROPattern software