Table 1 Sonographers and hospitals’ characteristics
| Â | Type of hospital | Number of beds | Number of studies by year | Number of sonographers | Number of participants | Experience (years) | Expert | Active sonographer | Number of participants doing self-practice |
|---|---|---|---|---|---|---|---|---|---|
Site A | University hospital | 700 | 8800 | 10 | 9 | 8 (4, 15) | 33% | 56% | 67% |
Site B | Public hospital | 450 | 5400 | 7 | 7 | 13 (6, 26) | 67% | 0% | 100% |
Site C | Private hospital | 459 | 12,000 | 29 | 22 | 12 (8, 15) | 67% | 27% | 60% |
Site D | Private hospital | 380 | 10,000 | 8 | 6 | 10 (7, 17) | 40% | 100% | 0% |
Site E | Public hospital | 575 | 6500 | 10 | 10 | 9 (5, 16) | 40% | 70% | 0% |