Table 1.
Comparison of Study Sample Characteristics for Development and Testing of the Pediatric Focused Assessment With Sonography for Trauma Deep Learning Model
| Total | Training | Validation | Test | |
|---|---|---|---|---|
|
| ||||
| Studies | 699 | 489 | 140 | 70 |
| Video clips | 4925 | 3510 | 956 | 459 |
| Still frames | 1,062,612 | 757,583 | 201,809 | 104,220 |
| Age, years (studies, %) | ||||
| 0–1 | 99 | 74 (15.1) | 19 (13.6) | 6 (8.6) |
| 2–5 | 133 | 93 (19.0) | 30 (21.4) | 10 (14.3) |
| 6–10 | 228 | 159 (32.5) | 41 (29.3) | 28 (40.0) |
| 11–15 | 198 | 132 (27.1) | 43 (30.7) | 23 (32.9) |
| 16–18 | 41 | 31 (6.3) | 7 (5.0) | 3 (4.3) |
| Sex (studies, %) | ||||
| Female | 282 | 201 (41.1) | 57 (40.7) | 24 (34.3) |
| Male | 417 | 288 (58.9) | 83 (59.3) | 46 (65.7) |
| Source (studies, %) | ||||
| Site 1 | 670 | 466 (95.3) | 136 (971) | 68 (971) |
| Site 2 | 29 | 23 (4.7) | 4 (2.9) | 2 (2.9) |
| Video clips (%) | ||||
| Still frames (%) | ||||
| Cardiac | 883 (17.9) | 646 (18.4) | 157 (16.4) | 80 (17.4) |
| 215,358 (20.3) | 157,848 (20.8) | 36,274 (18.0) | 21,236 (20.4) | |
| Pleural | 565 (11.5) | 407 (11.6) | 104 (10.9) | 54 (11.8) |
| 90,080 (8.5) | 63,974 (8.4) | 18,609 (9.2) | 7497 (72) | |
| Upper quadrant | 2258 (45.8) | 1614 (46.0) | 444 (46.4) | 200 (43.6) |
| 482,412 (45.4) | 344,844 (45.5) | 90,206 (44.7) | 47,362 (45.4) | |
| Suprapubic | 1219 (24.8) | 843 (24.0) | 251 (26.3) | 125 (27.2) |
| 275,762 (26.0) | 190,917 (25.2) | 56,720 (28.1) | 28,125 (27.0) | |
Note: Boldface indicates video clips (%) and non-boldface indicates still frames (%).