Table 1 (abstract B7). Study group demographics, placental characteristics & placental histology results
From: Meeting abstracts from the International Stillbirth Alliance Conference 2017
|  |  | AMA stillbirth n  = 35 | Stillbirth control group n  = 70 | AMA livebirth n  = 70 | Livebirth control group n  = 27 |
|---|---|---|---|---|---|
Matching criteria | |||||
Gestational age (days) | Median (IQ range) | 237 (199-266) | 237.5 (192.5-263.8) | 275 (273-278) | 279 (272-285) |
Pre-existing medical conditions n = (%) | VTE/thrombophilia | 4 (11.4) | 1 (1.4) | 0 (0) | 0 (0) |
| Â | Hypothyroidism | 2 (5.7) | 0 (0) | 1 (1.4) | 0 (0) |
| Â | Hypertensive disease | 3 (8.6) | 2 (2.9) | 0 (0) | 0 (0) |
| Â | Diabetes mellitus | 1 (2.9) | 3 (4.3) | 0 (0) | 0 (0) |
| Â | Asthma | 1 (2.9) | 5 (7.1) | 0 (0) | 0 (0) |
| Â | Epilepsy | 0 (0) | 2 (2.9) | 1 (1.4) | 0 (0) |
Ethnicity n = (%) | White | 17 (48.6) | 39 (55.7) | 57 (81.4) | 20 (74) |
| Â | African & Caribbean | 9 (25.7) | 12 (17.1) | 3 (4.3) | 2 (7) |
| Â | Mixed race | 1 (2.9) | 3 (4.3) | 2 (2.9) | 1 (4) |
| Â | Asian | 6 (17.1) | 14 (20.0) | 6 (8.6) | 3 (11) |
| Â | Other | 2 (5.7) | 2 (2.9) | 2 (2.9) | 1 (4) |
Fetal gender n = (%) | Male | 21 (60.0) | 36 (51.4) | 34 (48.6) | 15 (56) |
| Â | Female | 14 (40.0) | 34 (48.6) | 36 (51.4) | 12 (44) |
Smoker during pregnancy n = (%) | Yes | 7 (18) | 16 (22.9) | 1(1.4) | 3(11) |
Placental characteristics | |||||
Median placental weight (g) (IQ range) | 297 (187.8-387.5) | 298.5 (196.5-388) | 538 (463.5-602.5) | 478 (406.5-530.5) | |
Median F:PWR (IQ range) | 5.5 (4.1-7.2) | 5.6 (4.1-7.3) | 6.5 (5.7-7.2) | 7.2 (6.4-7.8) | |
Turowski placental histological classification n = (%) | |||||
Normal morphology | 3 (8.6) | 6 (8.6) | No data | ||
Chorioamnionitis | 5 (14.3) | 10 (12.8) | |||
Villitis/intervillositis | 10 (28.6) | 13 (14.3) | |||
| Â | Villitis | 4 (11.4) | 4 (5.7) | ||
| Â | Intervillositis | 6 (17.1) | 6 (8.6) | ||
Maternal circulatory disorders | 18 (51.4) | 41 (57.1) | |||
| Â | Cotyledon infarct | 9 (25.7) | 11 (15.7) | ||
| Â | Intervillous thrombus | 0 (0) | 2 (2.9) | ||
| Â | Abruption | 1 (2.9) | 5 (7.1) | ||
| Â | Maternal malperfusion | 12 (34.3) | 25 (35.7) | ||
Fetal circulatory disorders | 2 (5.7) | 7 (10.0) | |||
Delayed villous maturation | 10 (28.6) | 13 (18.6) | |||
ReCoDe classification n = (%) | |||||
A2.2 | 4 (11.4) | 4 (5.7) | No data | ||
A3 | 0 (0) | 1 (1.4) | |||
A7 | 12 (34.3) | 40 (57.1) | |||
A8 | 1 (2.9) | 0 (0) | |||
B2 | 2 (5.7) | 0 (0) | |||
C1 | 2 (5.7) | 4 (5.7) | |||
C4 | 4 (11.4) | 7 (10) | |||
F1 | 2 (5.7) | 2 (2.9) | |||
F4 | 3 (8.6) | 0 (0) | |||
F8 | 0 (0) | 1 (1.4) | |||
G1 | 0 (0) | 1 (1.4) | |||
I1 | 5 (14.3) | 10 (14.3) | |||