Table 1.
Clinical and demographic characteristics of included patients.
| Characteristic | Internal dataset (n = 1,000) | External dataset (n = 100) | |
|---|---|---|---|
| Training (n = 900) | Validation (n = 100) | ||
| Age in years | 29 (4-62) | 27.9 (4-58) | 28.7 (4-60) |
| Sex | |||
| Male | 248 (27.6) | 30 (30) | 32 (32) |
| Female | 652 (72.4) | 70 (70) | 68 (68) |
| Photograph classification | |||
| Frontal at rest | 950 (7.3) | 100 (7.1) | 110 (7.7) |
| Frontal smile | 1,012 (7.8) | 100 (7.1) | 99 (7) |
| Oblique at rest | 896 (6.9) | 100 (7.1) | 109 (7.7) |
| Oblique smile | 906 (7) | 100 (7.1) | 123 (8.7) |
| Profile at rest | 1,002 (7.7) | 100 (7.1) | 87 (6.1) |
| Profile smile | 935 (7.2) | 100 (7.1) | 90 (6.3) |
| Intraoral right | 976 (7.5) | 100 (7.1) | 102 (7.2) |
| Intraoral front | 899 (6.9) | 100 (7.1) | 109 (7.7) |
| Intraoral left | 1,009 (7.7) | 100 (7.1) | 107 (7.5) |
| Maxillary occlusal | 828 (6.4) | 100 (7.1) | 98 (6.9) |
| Mandibular occlusal | 932 (7.2) | 100 (7.1) | 97 (6.8) |
| Overjet | 854 (6.6) | 100 (7.1) | 89 (6.3) |
| Radiograph classification | |||
| Lateral cephalogram | 900 (6.9) | 100 (7.1) | 100 (7) |
| Panoramic radiograph | 900 (6.9) | 100 (7.1) | 100 (7) |
| Total number of images | 12,999 | 1,400 | 1,420 |
Values are n, n (%), or median (range).