Table 4.

Diagnostic Performance of OCTA Characters Compared With FFA

Character	% Sensitivity	% Specificity	% Positive Predictive Value	% Negative Predictive Value	Youden Index	Kappa ± SE
Medusa or sea-fan shape	65.9	87.8	84.4	72.0	0.537	0.537 ± 0.091
Tiny branching	82.1	90.2	85.2	88.1	0.723	0.732 ± 0.075
Loop or anastomoses	75.0	92.7	87.5	84.4	0.677	0.659 ± 0.082
Choroid dark halo	80.5	46.3	50.0	76.0	0.249	0.268 ± 0.100
One major criterion and two minor criteria	95.1	85.4	86.7	94.6	0.805	0.805 ± 0.065