Table 1.
Characteristics of the Women Who Provided Placental Samples
| Variable | Preeclampsia (n = 10) | Preterm control (n = 10) | P value |
|---|---|---|---|
| Age, years* | 31 ± 3 | 24 ± 3 | 0.065 |
| Nulliparity† | 5 (50) | 5 (50) | 1.000 |
| Gestational age, weeks* | 29.7 ± 1.2 | 30.5 ± 1.0 | 0.605 |
| Systolic blood pressure, mmHg* | 172 ± 7 | 117 ± 6 | <0.001 |
| Diastolic blood pressure, mmHg* | 102 ± 2 | 62 ± 3 | <0.001 |
| Dipstick protein‡ | 4 [2 to 4] | 0 [0 to 0] | <0.001 |
| 24-hour protein, g | 5 [0.7 to 7.2] | NA | NA |
| IUGR† | 3 (30) | 0 (0) | 0.211 |
| HELLP syndrome† | 3 (30) | 0 (0) | 0.211 |
| PPROM† | 0 (0) | 5 (50) | 0.033 |
| Birth weight, g* | 1077 ± 139 | 1532 ± 202 | 0.085 |
| Cesarean delivery† | 8 (80) | 3 (30) | 0.070 |
| Histological chorioamnionitis stages II to III† | 0 (0) | 0 (0) | 1.000 |
*
Data presented as mean ± SEM and analyzed by Student’s t-test.
†
Data presented as n (%) and analyzed by Fisher’s exact test.
‡
Data presented as median [range] and analyzed by Mann-Whitney test.
PPROM, preterm premature rupture of the membranes; IUGR, intrauterine growth restriction; HELLP, syndrome of hemolysis, elevated liver enzymes, and low platelets.