Table 3

Classification results of health volunteers (n=20) and patients with stages 1 keratoconus (n=40) on the testing sets

Healthy versus stage 1AccuracySensitivitySpecificityAUC
Axial map0.6667
(0.5667 to 0.7667)
1.0
(1.0 to 1.0)
0.0
(0.0 to 0.0)
0.5
(0.5 to 0.5)
Thickness map0.8667
(0.8 to 0.9333)
0.875
(0.7857 to 0.9524)
0.8500
(0.7143 to 0.9630)
0.8625
(0.7792 to 0.9375)
Front elevation map0.8000
(0.7167 to 0.8833)
0.8750
(0.7838 to 0.9535)
0.6500
(0.4583 to 0.8235)
0.7625
(0.6584 to 0.8562)
Back elevation map0.8500
(0.7667 to 0.9167)
0.8750
(0.7838 to 0.9524)
0.8
(0.6471 to 0.9412)
0.8375
(0.7457 to 0.9167)
Concatenated0.9
(0.8333 to 0.9500)
0.9245
(0.8537 to 0.9783)
0.85
(0.7143 to 0.96)
0.8875
(0.8103 to 0.9556)
Majority voting0.9167
(0.8500 to 0.9667)
0.9500
(0.8864 to 1.0)
0.8500
(0.7143 to 0.9600)
0.9000
(0.8242 to 0.9653)
  • 95% CI in brackets.

  • AUC, area under the curve.