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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
C3D1D2D3
Both (x1)1653
One (x2)98119
Neither (x3)65465433
Total (n)75607045
π0.0730.1670.1500.167
pa0.8800.8670.8430.800
κ (MLE)0.1170.5200.3840.280
AC1 (MLE)0.8610.8150.7890.723