Table 1.
Baseline Characteristics of Women in IPC and Control Cohorts.
| Characteristic | IPC Cohort (n1 = 29) | Control Cohort (n2 = 58) | p-value* |
|---|---|---|---|
| Teenagers (< 20 y) | 7 (24%) | 12 (21%) | 0.78 |
| Advanced age (≥ 35 y) | 4 (14%) | 3 (5%) | 0.22 |
| Primiparous | 15 (52%) | 14 (24%) | 0.02 |
| Previous term | 12 (41%) | 36 (62%) | 0.11 |
| Previous preterm | 12 (41%) | 20 (35%) | 0.64 |
| Previous abortion | 15 (52%) | 30 (52%) | 0.99 |
| Preeclampsia/Eclampsia | 4 (14%) | 18 (31%) | 0.12 |
| Hypertension | 2 (7%) | 5 (9%) | 0.99 |
| Diabetes | 1 (3%) | 3 (5%) | 0.99 |
| Connective Tissue Disease | 1 (3%) | 2 (3%) | 0.99 |
| Single (marital status) | 27 (93%) | 55 (95%) | 0.99 |
| Illicit substance abuse | 8 (28%) | 14 (24%) | 0.80 |
| Tobacco abuse | 4 (14%) | 6 (10%) | 0.73 |
| No prenatal care | 9 (31%) | 18 (31%) | 0.99 |
| Multiple gestation | 7 (24%) | 3 (5%) | 0.01 |
| Stillbirth | 4/37 infants (11%)a | 4/61 infants (5%)b | 0.47 |
| Birth weight, mean (range) | 944 g (520-1490) | 1023 g (520-1480) | 0.25** |
*
refers to p-value for Fisher’s exact test unless otherwise specified;
**
refers to p-value for Student’s t-test;
a
3 macerated stillbirth; 1 non-macerated with acute hypoxic changes (prolapsed cord);
b
3 macerated stillbirth; 1non-macerated with acute hypoxic changes (entrapped breech).