Abruptio placentae | 15 (10.6) | 13 (17.3) | 28 (12.9) |
Maternal diabetes | 4 (2.8) | 0 | 4 (1.8) |
Infection | 19 (13.4) | 4 (5.3) | 23 (10.6) |
Chorioamnionitis | 14 (9.9) | 3 (4.0) | |
Cytomegalovirus | 0 | 1 (1.3) | |
Parvovirus B19 | 3 (2.1) | 0 | |
Villitis | 2 (1.4) | 0 | |
Intrapartum asphyxia | 2 (1.4) | 1 (1.3) | 3 (1.4) |
Intrauterine growth restriction | 6 (4.2) | 0 | 6 (2.8) |
Malformation | 12 (8.4) | 6 (8.0) | 18 (8.3) |
Maternal hypertension | 5 (3.5) | 2 (2.6) | 7 (3.2) |
Unknown cause | 45 (31.7) | 13 (17.3) | 58 (26.7) |
Other—placental causes | 18 (12.7) | 25 (33.3) | 43 (19.8) |
Other—fetal causes | 16 (11.7) | 11 (14.7) | 27 (12.4) |
Total | 142 (65.4) | 75 (34.6) | 217 |