Table 2

Performance of AS-OCT in prediction of clinical diagnosis of plateau iris

StatisticGrader 1Grader 2Grader 3
Value95% CIValue95% CIValue95% CI
Sensitivity66.67%51.05% to 80.00%77.78%62.91% to 88.80%56.47%45.28% to 67.20%
Specificity64.29%48.03% to 78.45%57.14%40.96% to 72.28%48.94%38.48% to 59.46%
Positive likelihood ratio1.871.18 to 2.941.811.24 to 2.661.110.84 to 1.45
Negative likelihood ratio0.520.32 to 0.830.390.21 to 0.710.890.65 to 1.22
Disease prevalence30.00%30.00%30.00%26.53% to 38.35%
Positive predictive value44.44%33.66% to 55.78%43.75%34.66% to 53.28%32.16%65.61% to 78.29%
Negative predictive value81.82%73.76% to 87.81%85.71%76.60% to 91.67%72.40%43.63% to 58.72%
Accuracy65.00%54.03% to 74.92%63.33%52.32% to 73.41%51.20%45.28% to 67.20%
Kappa0.310, p<0.0040.351, p<0.0010.334, p<0.002
  • AS-OCT, anterior segment optical coherence tomography.