Table 1.
Baseline demographics of subjects
| Crohn’s disease | |
|---|---|
| Patients (n) | 82 |
| Pregnancies (n) | 91 |
| Age at conception (year*, IQR) | 31 (29–34) |
| BMI at time of sonography (kg/m2*, IQR) | 24.3 (21.7–27.6) |
| Gestational age at time of sonography (weeks*, IQR) | 20.1 (13.2–24.6) |
| Time between sonography and clinical assessment (weeks*, IQR) | 2.3 (1.0–4.7) |
| Montreal classification | |
| Age at diagnosis, (n) | |
| A1 (less than 17 years old) | 20 (24.4%) |
| A2 (17 to 40 years old) | 62 (75.6%) |
| A3 (more than 40 years old) | 0 |
| Location of disease, (n) | |
| L1 (ileal) | 25 (30.5%) |
| L2 (colonic) | 19 (23.2%) |
| L3 (ileocolonic) | 38 (46.3%) |
| Disease behaviour, (n) | |
| B1 (inflammatory) | 51 (62.2%) |
| B2 (stricturing) | 10 (12.2%) |
| B3 (fistulizing) | 21 (25.6%) |
| p (+ perianal involvement) | 28 (34.1%) |
| History of bowel surgery, (n) | 27 (32.9%) |
| HBI score at sonography* (IQR) | 0 (0–2) |
| Sonographic findings, (n) | |
| Normal scan | 67 (73.6%) |
| Mild disease | 13 (14.3%) |
| Moderate disease | 4 (4.4%) |
| Severe disease | 7 (7.7%) |
| Sonographic assessment quality, (n) | |
| Optimal | 84 (92.3%) |
| Suboptimal | 7 (7.7%) |
IQR, Interquartile Ratio; HBI, Harvey Bradshaw Index; BMI, body mass index; *median