Table 2 Internal and external validation of the DLS in image models, clinical models and mixed models for 5-year axial length ≥26.5 mm prediction.

From: Deep learning system to predict the 5-year risk of high myopia using fundus imaging in children

Model

Input Variables

Internal Validation (School 2 and 3)

External Validation (School 1)

Threshold

AUC (C.I.)

Accuracy (C.I)

Sensitivity (C.I.)

Specificity (C.I.)

Threshold

AUC (C.I.)

Accuracy (C.I)

Sensitivity (C.I.)

Specificity (C.I.)

Image model

Fundus photo

0

0.67 (0.48–0.87)

0.94 (0.94–0.94)

0.38 (0.37–0.38)

0.95 (0.95–0.95)

0

0.57 (0.47–0.69)

0.84 (0.84–0.84)

0.25 (0.25–0.25)

0.90 (0.90–0.90)

Fundus photo + Age + Race + Gender

0.03

0.86 (0.76–0.96)

0.77 (0.77–0.77)

0.63 (0.62–0.63)

0.77 (0.77–0.77)

0.03

0.64 (0.49–0.80)

0.69 (0.69–0.70)

0.63 (0.62–0.63)

0.70 (0.70–0.70)

Clinical model

Baseline ALa

0

0.83 (0.62–0.98)

0.84 (0.84–0.84)

0.75 (0.75–0.75)

0.84 (0.84–0.84)

0

0.91 (0.86–0.96)

0.67 (0.67–0.67)

1.00 (1.00–1.00)

0.64 (0.64–0.64)

Baseline ALa + Age + Race + Gender

0.01

0.93 (0.89–0.97)

0.86 (0.86–0.86)

0.75 (0.75–0.75)

0.86 (0.86–0.86)

0.01

0.95 (0.92–0.98)

0.71 (0.71–0.72)

1.00 (1.00–1.00)

0.69 (0.69–0.69)

Baseline ALa + Age + Race + Gender + 1-year AL* progression

0.04

0.95 (0.91–0.98)

0.88 (0.87–0.88)

0.88 (0.87–0.88)

0.88 (0.87–0.88)

0.04

0.94 (0.90–0.98)

0.74 (0.74–0.74)

0.94 (0.94–0.94)

0.72 (0.72–0.72)

Mixed model

Fundus photo + Baseline ALa

0.17

0.98 (0.95–1.00)

0.93 (0.93–0.93)

0.88 (0.87–0.88)

0.93 (0.93–0.94)

0.17

0.88 (0.83–0.93)

0.85 (0.85–0.85)

0.75 (0.75–0.75)

0.86 (0.85–0.86)

Fundus photo + Baseline ALa + Age + Race + Gender

0.07

0.98 (0.96–1.00)

0.94 (0.94–0.94)

1.00 (1.00–1.00)

0.94 (0.94–0.94)

0.07

0.89 (0.83–0.94)

0.86 (0.86–0.86)

0.81 (0.81–0.81)

0.87 (0.87–0.87)

Fundus photo + Baseline ALa + Age + Race + Gender + 1-year ALa progression

0.16

0.98 (0.96–1.00)

0.92 (0.92–0.92)

0.88 (0.87–0.88)

0.92 (0.92–0.92)

0.16

0.90 (0.84–0.94)

0.83 (0.82–0.83)

0.69 (0.69–0.69)

0.84 (0.84–0.84)

  1. AUC area-under-curves, C.I. confidence interval.
  2. aAxial length (AL) was performed using contact ultrasound biometry.