Patient characteristics
| Characteristic | Phase I (n=72) | Phase II (n=72) |
| Age in years (median) | 17–40 (27) | 16–44 (29) |
| Parity (median) | 0–7 (1) | 0–5 (1) |
| Gestational age in weeks (median) | 6+2–10+2 (8) | 6+0–9+0 (7) |
| Estimated blood loss in mL (median) | 15–125 (55) | 5–100 (20) |
| Cannula size used (median) | 5–9 (7) | 5–9 (6) |
| Number of aspirations needed (median) | 2–6 (2) | 1–6 (2) |
| Entonox use (%) | 16.6 | 36.0 |
| Vomiting (%) | 2.8 | 6.0 |
| Pain visual analogue score (VAS) (median) | 0–9.3 (3.5) | 0–9.6 (3.5) |
| Complications (%) | 1.4 | 4.0 |
| Long-acting reversible contraception (LARC) uptake (%) | 51.4 | 68.0 |