Table 1.
Characteristics of the development set and the external test set.
| Development set | External test set | |||
|---|---|---|---|---|
| Total no. of photographic images | 1,258 | 309 | ||
| Total no. of qualified photographic imagesa | 1,151 | 266 | ||
| Total no. of cropped images | 1, 248 | 285 | ||
| No. of patients | 675 | 176 | ||
| Mean age/range (years) | 49.6 (1–100) | 50.0 (2–87) | ||
| No. of women (%) | 421 (62.4) | 111 (63.1) | ||
| Institution | NEH | JEH and ZFPH | ||
| Location of institution | East of China | East and west of China | ||
| Camera model | Canon IXUS-130, Nikon COOLPIX-S7000 | FUJIFILM FinePix-F41, HUAWEI EVA-AL00 | ||
| Training set | Validation set | Internal test set | ||
| Benign eyelid tumorb | 668/883 (75.7) | 121/168 (72.0) | 146/197 (74.1) | 226/285 (79.3) |
| Malignant eyelid tumorb | 215/883 (24.3) | 47/168 (28.0) | 51/197 (25.9) | 59/285 (20.7) |
NEH Ningbo Eye Hospital, JEH Jiangdong Eye Hospital, ZFPH Zunyi First People’s Hospital.
aQualified photographic images indicate the images with unequivocal histopathological diagnoses.
bData are no. of cropped images/total no. (%) unless otherwise indicated.