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Table 6 Agreement between ophthalmologist and reading center classifying superior nasal retinal breaks stratified by PVR grade

From: Homogeneity score test of AC1 statistics and estimation of common AC1 in multiple or stratified inter-rater agreement studies

 

PVR grade

C3

D1

D2

D3

Both (x1)

1

6

5

3

One (x2)

9

8

11

9

Neither (x3)

65

46

54

33

Total (n)

75

60

70

45

π

0.073

0.167

0.150

0.167

pa

0.880

0.867

0.843

0.800

κ (MLE)

0.117

0.520

0.384

0.280

AC1 (MLE)

0.861

0.815

0.789

0.723