Participant characteristics by country
| Participant characteristic | Total (n=306) | Uzbekistan (n=134) | Ukraine (n=172) | P value* |
| Age (years) (median (range)) | 28 (15–45) | 28 (18–45) | 29 (15–44) | 0.519 |
| Gravidity (median (range)) | 2 (1–11) | 3 (1–11) | 2 (1–10) | <0.001 |
| Parity (median (range)) | 1 (0–5) | 2 (0–5) | 0 (0–4) | <0.001 |
| Nulliparous (n (%)) | 121 (39.5) | 34 (25.4) | 87 (50.6) | <0.001 |
| Prior abortion (n (%)) | 64 (20.9) | 25 (18.7) | 39 (22.7) | 0.479 |
| Gestational age (weeks) (median (range)) | 18.1 (13.0–21.7) | 15.7 (13.0–21.7) | 20.1 (13.6–21.7) | <0.001 |
| 13–18 (n (%)) | 151 (49.3) | 105 (78.4) | 46 (26.7) | <0.001 |
| 19–22 (n (%)) | 155 (50.7) | 29 (21.6) | 126 (73.3) | |
| Travel time to hospital (hours) (median (range)) | 0.8 (0.2–18.0) | 0.7 (0.3–18.0) | 1.0 (0.2–6.5) | 0.014 |
*Fisher’s exact test for difference in proportions; Mann–Whitney U-test for difference in medians.