Table 3.
ALTAIR: Algorithm results for Experiments 1, 2, and 3
| EXPERIMENT 1a | ||||||
| AUC | Accuracy | Sensitivity | Specificity |
Patients in Group Ab (< 3 extension decisions taken at Visits 4, 5, 6, and 7) |
Patients in Group Bb (3 or 4 extension decisions taken at Visits 4, 5, 6, and 7) |
|
| 0.78 | 78% | 85% (31/37) | 71% (36/46) | 37 | 46 | |
| EXPERIMENT 2a | ||||||
| AUC | Accuracy | Sensitivity | Specificity | Patients with high IVT-AFL needc | Patients with low IVT-AFL needc | |
| Year 1 | 0.79 | 79% | 79% (27/35) | 78% (42/54) | 35 | 54 |
| Year 2 | 0.78 | 78% | 87% (34/39) | 69% (26/38) | 39 | 38 |
| EXPERIMENT 3a | ||||||
| AUC | Accuracy | Sensitivity | Specificity | Patients with short intervals (< 12 weeks) at end of Year 2 | Patients with long intervals (≥ 12 weeks) at end of Year 2 | |
| 0.77 | 76% | 81% (34/43) | 71% (24/34) | 43 | 34 | |
aThe numerator and the denominator of the fractions for sensitivity and specificity are mean values of the fivefold cross-validation; as such, the result of division may not correspond exactly to the percentage value specified
bGroup A: predicted ‘short’ interval at Visit 7; Group B: predicted ‘long’ interval at Visit 7
cHigh IVT-AFL need was defined as ≥ 8 and ≥ 5 IVT-AFL injections per year for Year 1 and 2, respectively; low IVT-AFL need was defined as < 8 and < 5 IVT-AFL injections per year for Year 1 and 2, respectively
AUC, area under the curve; IVT-AFL, intravitreal aflibercept