Table 1.
Demographics and clinical characteristics of the patients with pernicious placenta previa (PPP) and healthy controls.
| Items | Study group |
p | ||
|---|---|---|---|---|
| Control (n = 46) | PPP (n = 140) |
|||
| Non-PA (n = 84) | PA (n = 56) | |||
| Age (years) | 28 (21, 35) | 29 (22, 34) | 30 (23, 37) | .165 |
| Gestational weeks at delivery | ||||
| <37 | 4 (8.7 %) | 40 (47.6%) | 35 (62.5%) | <.001 |
| ≥37 | 42 (91.3 %) | 44 (52.4%) | 21 (37.5%) | |
| Parity | ||||
| 0 | 22 (47.8 %) | 9 (10.7%) | 5 (8.9%) | <.001 |
| 1 | 17 (36.9 %) | 39 (46.4%) | 18 (32.2%) | |
| ≥2 | 7 (15.3 %) | 36 (42.9%) | 33 (58.9%) | |
| History of abortions | ||||
| 0 | 31 (67.4 %) | 41 (48.8%) | 19 (33.9%) | .013 |
| 1 | 12 (26.1 %) | 33 (39.3%) | 25 (44.6%) | |
| ≥2 | 3 (6.5 %) | 10 (11.9%) | 12 (21.5%) | |
| History of caesarean delivery | ||||
| 0 | 35 (76.1 %) | 30 (35.7%) | 16 (28.6%) | <.001 |
| 1 | 9 (19.6 %) | 29 (34.5%) | 14 (25.0%) | |
| ≥2 | 2 (4.3 %) | 25 (29.8%) | 26 (46.4%) | |
| Type of PPP | ||||
| Total placenta praevia | 23 (27.4%) | 34 (60.7%) | <.001 | |
| Partial placenta praevia | 40 (47.6%) | 14 (25.0%) | ||
| Marginal placenta praevia | 21 (25.0%) | 8 (14.3%) | ||
| Intraoperative haemorrhage (mL) | 288 (134, 572) | 664 (294, 1453) | 1273 (487, 2518) | <.001 |
| Hospitalization (days) | 4 (3, 7) | 6 (4, 9) | 9 (6, 15) | .027 |
The data presented are median (min., max.) or n (%). The comparisons of data among the three group were done by Kruskal–Wallis test or Chi-square test. PPP: pernicious placenta previa; PA: placenta accrete.