| Categorical variables |
Pathological history |
Patient’s previous or existing medical conditions. |
| Family medical history |
Patient’s family history of hereditary medical conditions. |
| Pharmacological history |
Patient’s current or past use of medications. |
| Ordinal variables |
Chromosomal abnormality |
Indicates whether a chromosomal anomaly is present. |
| Screening |
Indicates whether the patient underwent screening procedures. |
| Thromboembolic risk |
Patient’s assessed risk of thromboembolic events (low, intermediate, or high). |
| Psychosocial risk |
Patient’s assessed level of psychosocial vulnerability (low, intermediate, or high). |
| Depression screening |
Patient’s depression risk level based on screening results (low, intermediate, or high). |
| Tobacco use |
Indicates whether the patient smoked or has smoked during pregnancy. |
| Nutritional deficiencies |
Indicates whether the patient has been diagnosed with nutritional deficiencies. |
| Alcohol use |
Indicates whether the patient consumes alcohol during pregnancy. |
| Physical activity |
Indicates whether the patient engages in regular physical exercise. |
| Numerical variables |
Age |
Maternal age. |
| Imaging week |
Gestational week when the ultrasound image was acquired. |
| Gestational week |
Week of pregnancy at the time of data collection. |
| Body Mass Index |
Maternal body mass index. |
| Pregnancies |
Total number of pregnancies (excluding the current one). |
| Vaginal births |
Number of previous vaginal deliveries. |
| Cesarean sections |
Number of previous cesarean deliveries. |
| Miscarriages |
Number of previous spontaneous abortions. |
| Ectopic pregnancies |
Number of previous ectopic pregnancies. |
| Platelets |
Blood platelet count. |
| Hemoglobin |
Hemoglobin concentration in the blood. |
| Hematocrit |
Hematocrit percentage. |
| White blood cells |
Total leukocyte count. |
| Neutrophils |
Neutrophil count. |