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. 2025 Apr 10;263(7):1885–1897. doi: 10.1007/s00417-025-06812-x

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