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A summary of the datasets utilized in the study, with percentages of BE-positive and negative cases
| Dataset | Study | Patients (slide pairs) | BE-positive | BE-negative |
|---|---|---|---|---|
| Discovery development set (train, validation) | DELTA | 912 | 348 (38.2%) | 564 (61.8%) |
| Discovery test set | DELTA | 229 | 87 (38.0%) | 142 (62.0%) |
| External test set (holdout) | BEST2 | 725 | 329 (45.4%) | 396 (54.6%) |
| Total | 1866 | 764 (40.9%) | 1102 (59.1%) |
