TABLE 1.
Baseline characteristics for women with postpartum hemorrhage and a valid corresponding fibrin‐based thromboelastometry amplitude of clot firmness at 5 min (FIBTEM A5) and fibrinogen measurement between 800 and 1500 ml of blood loss following birth
|
Total n = 391 |
Severe postpartum hemorrhage | ||
|---|---|---|---|
|
No n = 319 |
Yes n = 72 |
||
| Maternal age, years* | 32 (28–35) | 32 (28–35) | 32 (28–35) |
| Gestational age, weeks* | 39 (38–40) | 39 (38–40) | 39 (37–40) |
| Body mass index, kg/m2 * | 24 (22–28) | 24 (22–28) | 25 (22–29) |
| Caucasian, n (%) | 336 (86%) | 276 (87%) | 60 (83%) |
| Nulliparity, n (%) | 201 (51%) | 166 (52%) | 35 (49%) |
| Multiple pregnancy, n (%) | 34 (9%) | 23 (7%) | 11 (15%) |
| Preeclampsia, n (%) | 32 (8%) | 24 (8%) | 8 (11%) |
| Mode of birth, n (%) | |||
| Vaginal birth | 304 (78%) | 246 (77%) | 58 (81%) |
| Cesarean section | 87 (22%) | 73 (23%) | 14 (19%) |
| Cause of hemorrhage, n (%) | |||
| Uterine atony | 145 (37%) | 120 (38%) | 25 (35%) |
| Retained placenta or remnants of placental tissue | 148 (38%) | 112 (35%) | 36 (50%) |
| Placenta previa | 5 (1%) | 4 (1%) | 1 (1.5%) |
| Placental abruption | 3 (1%) | 3 (1%) | 0 (0%) |
| Abnormally invasive placenta | 5 (1%) | 2 (1%) | 3 (4%) |
| Laceration of the birth canal | 42 (11%) | 36 (11%) | 6 (8%) |
| Iatrogenic surgical bleeding | 39 (10%) | 38 (12%) | 1 (1.5%) |
| Uterine rupture | 4 (1%) | 4 (1%) | 0 (0%) |
| Blood loss at study entry, ml* | 1100 (1000–1300) | 1100 (1000–1300) | 1100 (1000–1300) |
| Hb level at study entry, g/dl* | 10.3 (9.0–11.4) | 10.5 (9.4–11.4) | 9.5 (8.1–11.1) |
| Fibrinogen at study entry, g/L* | 3.9 (3.4–4.6) | 4.0 (3.4–4.7) | 3.9 (2.8–4.4) |
| FIBTEM A5 at study entry, mm* | 17 (13–20) | 17 (13–20) | 16 (13–21) |
*
Reported as median with (IQR).