TABLE 1.
Demographic characteristics of the datasets
| Characteristics | Asian training set | Asian internal test set | Caucasian external test set | p Values* |
|---|---|---|---|---|
| Number of pairs | 573 | 148 | 111 | – |
| Number of participants | 404 | 102 | 63 | – |
| Age, years | 66.2 ± 8.9 | 66.7 ± 8.1 | 63.6 ± 11.7 | 0.011 |
| Male, n (%) | 266 (66%) | 62 (66%) | 18 (29%) | <0.001 |
| Ethnicity | Chinese | Chinese | Caucasian | – |
| Refractive error, D | −1.14 ± 2.25 | −1.32 ± 2.22 | 0.38 ± 1.15 | <0.001 |
| Global RNFL thickness, μm | 74.95 ± 12.23 | 76.06 ± 10.67 | 79.33 ± 13.34 | 0.030 |
| Visual field mean deviation (VF MD), dB | −5.77 ± 5.32 | −5.85 ± 5.05 | −4.79 ± 5.79 | 0.118 |
| Glaucoma severity a | – | |||
| Mild | 368 (64.2%) | 96 (64.9%) | 78 (70.3%) | – |
| Moderate | 137 (23.9%) | 35 (23.6%) | 22 (19.8%) | – |
| Advanced | 68 (11.9%) | 17 (11.5%) | 11 (9.9%) | – |
Note: Values presented as mean ± standard deviation, or number (%). Bold indicates significant difference.
Abbreviations: D, dioptres; RNFL, retinal nerve fiber layer.
a
Mild (VF MD ≥ −6 dB), moderate (−12 dB ≤ VF MD < −6), and advanced (VF MD < −12 dB).
*p Values represent significance values for t‐tests between the internal and external test sets.