Table 3 Kappa measures of agreement between concordant in situ and invasive morphology

From: Risk of subsequent invasive breast carcinoma after in situ breast carcinoma in a population covered by national mammographic screening

 

Kappa

 

N

All morphologies

N

Ductal (Ductal+comedo)

N

Lobular

All in situ followed by invasive

140

0.19

62

0.21

5

0.34

Invasive in contralateral breast

54

0.14

24

0.16

2

0.29

Invasive in ipsilateral breast

105

0.18

47

0.18

5

0.36

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