Table 1.
Characteristics for Singleton Pregnancies for Stillbirths and Live Births by PE/GH Status – Placental Analysis Weights
| Characteristic - weighted %a | Stillbirths | Live Births | ||||
|---|---|---|---|---|---|---|
|
|
|
|||||
| PE/GH | No PE/GH | P-value | PE/GH | No PE/GH |
P-value | |
|
|
|
|||||
| Unweighted sample size | N=79 | N=439 | N=140 | N=1060 | ||
| Weighted sample size | Nw=78 | Nw=440 | Nw=105 | Nw=862 | ||
|
| ||||||
| Maternal age at delivery, years | ||||||
| <20 | 7 (9.4) | 67 (15.2) | 0.0179 | 9 (8.9) | 90 (10.5) | 0.0780 |
| 20–34 | 50 (63.9) | 308 (70.1) | 72 (69.2) | 665 (77.2) | ||
| 35–39 | 18 (22.9) | 44 (10.0) | 19 (18.5) | 87 (10.1) | ||
| 40+ | 3 (3.8) | 21 (4.7) | 4 (3.5) | 19 (2.3) | ||
| Total | 78 | 440 | 105 | 862 | ||
| Maternal race/ethnicity | ||||||
| Non-Hispanic white | 23 (29.8) | 154 (34.9) | 0.7103 | 48 (45.9) | 387 (44.9) | 0.2072 |
| Non-Hispanic black | 19 (25.2) | 95 (21.6) | 12 (11.5) | 100 (11.7) | ||
| Hispanic | 29 (37.4) | 167 (37.9) | 42 (39.8) | 310 (35.9) | ||
| Other | 6 (7.5) | 24 (5.5) | 3 (2.9) | 65 (7.5) | ||
| Total | 77 | 440 | 105 | 862 | ||
| Marital status | ||||||
| Not married or cohabitating | 21 (29.4) | 102 (25.0) | 0.6151 | 20 (20.2) | 124 (15.0) | 0.6151 |
| Cohabitating | 16 (21.5) | 108 (26.4) | 21 (21.7) | 190 (23.1) | ||
| Married | 36 (49.1) | 199 (48.6) | 56 (58.1) | 508 (61.9) | ||
| Total | 73 | 409 | 97 | 822 | ||
| Maternal education, grade | ||||||
| 0–11 (none/primary/some secondary) | 21 (29.6) | 94 (23.1) | 0.4619 | 16 (16.5) | 151 (18.5) | 0.8167 |
| 12 (completed secondary) | 21 (29.7) | 120 (29.4) | 28 (29.2) | 221 (26.9) | ||
| 13+ (college) | 29 (40.7) | 193 (47.4) | 52 (54.3) | 448 (54.6) | ||
| Total | 71 | 408 | 96 | 821 | ||
| Insurance/method of payment | ||||||
| No insurance | 3 (3.8) | 30 (6.8) | 0.5786 | 3 (3.3) | 39 (4.5) | 0.5984 |
| Any public/private assistance | 43 (56.6) | 231 (52.6) | 56 (53.8) | 419 (48.6) | ||
| VA/commercial health ins/HMO | 30 (39.5) | 178 (40.5) | 45 (42.9) | 404 (46.9) | ||
| Total | 76 | 438 | 105 | 861 | ||
| Household income | ||||||
| Public/private assistance only | 8 (11.4) | 33 (8.1) | 0.2887 | 16 (16.7) | 38 (4.7) | 0.2887 |
| Public/private assistance and personal income | 30 (42.5) | 145 (35.8) | 34 (35.2) | 314 (38.5) | ||
| Personal income only | 33 (46.1) | 227 (56.1) | 46 (48.0) | 464 (56.8) | ||
| Total | 71 | 405 | 96 | 816 | ||
| Gestational age | ||||||
| 18–19 | 1 (1.4) | 10 (2.2) | 0.0045 | 0 (0.0) | 0 (0.0) | <.0001 |
| 20–23 | 8 (10.1) | 156 (35.6) | 0 (0.1) | 3 (0.3) | ||
| 24–27 | 16 (20.0) | 61 (13.8) | 1 (1.1) | 3 (0.4) | ||
| 28–31 | 15 (19.3) | 51 (11.5) | 4 (4.1) | 3 (0.3) | ||
| 32–36 | 19 (24.4) | 86 (19.5) | 13 (12.1) | 61 (7.1) | ||
| 37+ | 19 (24.9) | 77 (17.5) | 86 (82.6) | 791 (91.9) | ||
| Total | 78 | 440 | 105 | 862 | ||
|
| ||||||
| Parity | ||||||
| Nulliparous | 35 (44.3) | 200 (45.7) | 0.8253 | 51 (48.5) | 282 (33.0) | 0.0041 |
| Multiparous | 43 (55.7) | 237 (54.3) | 54 (51.5) | 572 (67.0) | ||
| Total | 78 | 437 | 105 | 855 | ||
a
Weighted percentages and p-values are shown. The weights take into account the study design, differential consent based on characteristics recorded on all eligible pregnancies that were screened for the study, and differential losses to placental examination. Unweighted and weighted samples sizes are also provided. Sample sizes vary slightly by characteristic included in the table.