Table 1 Characteristics of responders by number (n) and percentage (%) of total ultrasound units (n = 38 units)
Characteristics | (n) | (%) |
|---|---|---|
Position of responder | ||
Head of department | 6 | 15.8 |
Physician in charge of ultrasound unit | 21 | 55.3 |
Midwife in charge of ultrasound unit | 6 | 15.8 |
Other specified position | 4 | 10.5 |
Missing | 1 | 2.6 |
Type of unit | ||
University hospital | 6 | 15.8 |
Regional hospital | 20 | 52.6 |
Private unit | 6 | 15.8 |
Other or mixed | 6 | 15.8 |
Second-trimester ultrasound examinations per year | ||
<500 | 1 | 2.6 |
500 to 1499 | 7 | 18.4 |
1500 to 2499 | 10 | 26.3 |
2500 to 3499 | 12 | 31.6 |
≥3500 | 8 | 21.1 |
First-trimester ultrasound examinations offered in unita | ||
<11 weeks on woman’s request | 3 | 7.9 |
<11 weeks on indication | 7 | 18.4 |
Week 11 to 14 for all women | 9 | 23.7 |
Week 11 to 14 only for specified groups in the context of chromosomal screening | 16 | 42.1 |
Week 11 to 14 for all women in the context of chromosomal screening | 16 | 42.1 |
BPD measurements for pregnancy dating in the unit | ||
BPD 21–55 mm | 33 | 86.8 |
BPD 32–55 mm | 2 | 5.3 |
BPD and FL combined | 2 | 5.3 |
Missing | 1 | 2.6 |
CRL measurements for pregnancy dating in the unit | ||
Never been practiced | 13 | 34.2 |
Previously performed but currently only BPD-based | 6 | 15.8 |
Limited to CRL ≥45 mm and BPD ≤21 mm | 11 | 28.9 |
Limited to measurements of 45–85 mm | 2 | 5.3 |
Other, such as occasional use | 4 | 10.5 |
Missing | 2 | 5.3 |
Gestational age at EDD | ||
39 weeks + 6 days | 30 | 78.9 |
40 weeks + 0 days | 5 | 13.2 |
Uncertain | 2 | 5.3 |
Missing | 1 | 2.6 |