Table 4 Patient characteristics and metadata across the data folds used for model development

From: Whole examination AI estimation of fetal biometrics from 20-week ultrasound scans

Data fold

Train

Validation

Test

Lowest p-value

Total scans

4395

1457

1457

N/A

Abnormalities

528 (12.0%)

155 (10.6%)

163 (11.2%)

0.360

Live birth

4363 (99.2%)

1442 (98.9%)

1450 (99.5%)

0.375

Avg. GA

20 w 3 d

20w 3d

20w 3d

0.653

Avg. maternal age

32.3

32.6

32.5

0.193

Nonwhite

1352 (30.8%)

458 (31.4%)

418 (28.7%)

0.166

Avg. BMI (kg/m2)

24.7

24.9

24.9

0.448

  1. None of the patient characteristics, including gestational age (GA), maternal body mass index (BMI), or percentage of abnormal scans were significantly different across the chosen folds.
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