Table 3.

Concordance analysis among evaluations with respect to vessel extent.

Classification	Kappa	CI 95%	Concordance
Degree 0: no vessels on the corneal lamina	-	-	-
Degree 1: vessels that advanced over the corneal limbus, reaching up to ¼ of the burned area	0.863	0.541 – 1	Excellent
Degree 2: vessels that advanced over the corneal limbus, reaching up to ½ of the burned area	0.471	0.149 – 0.794	Good
Degree 3: vessels that advanced over the corneal limbus, reaching up to 3/4 of the burned area	0.644	0.322 – 0.967	Good
Degree 4: vessels that extended throughout the entire burned area	0.824	0.502 – 1	Excellent

CI – confidence interval.