Table I.
Demographic and clinical characteristics of the study populations
| Demographic or clinical characteristic | TNL (n=7) | TIL (n=26) | PTNL (n=13) | PTL (n=14) | P value |
|---|---|---|---|---|---|
|
| |||||
| Maternal age (years)* | 28 (23–32) | 23.5 (22–27) | 25 (22–30) | 22 (19.5–25) | NS |
|
| |||||
| Race** | NS | ||||
| African-American | 7 (100%) | 26 (100%) | 11 (84.6%) | 13 (92.9%) | |
| Caucasian | 0 (0.0%) | 0 (0.0%) | 1 (7.7%) | 1 (7.1%) | |
| Hispanic | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | |
| Other | 0 (0.0%) | 0 (0.0%) | 1 (7.7%) | 0 (0.0%) | |
|
| |||||
| Maternal weight (kg)* | 93 (68.8–98.7) | 90.05 (71.1–106.0) | 74.8 (62.6–102.7) | 75.6 (56.7–88.2) | NS |
|
| |||||
| Body mass index (kg/m2)* | 31.2 (26.35–41.45) | 33.9 (27.38–39.25) | 32.8 (23–39.4) | 28.35 (21.53–31.6) | NS |
|
| |||||
| Primiparity** | 0 (0%) | 6 (23.08%) | 3 (23.08%) | 1 (7.14%) | NS |
|
| |||||
| Gestational age at delivery (weeks)* | 39 (38.5–39.5) | 39.4 (38.2–39.9) | 34.9 (32–36.1) | 34.2 (31.2–35.3) | <0.0001 |
|
| |||||
| Birth weight (grams)* | 3005 (2855–3073) | 3240 (2906–3419) | 1510 (1255–2375) | 2148 (1674–2554) | <0.0001 |
|
| |||||
| Cesarean section** | 100% | 15.4% | 100% | 14.3% | <0.0001 |
|
| |||||
| Chronic chorioamnionitis** | 28.6% | 30.8% | 46.2% | 21.4% | NS |
|
| |||||
| Acute chorioamnionitis** | 0% | 34.6% | 7.7% | 42.8% | NS |
|
| |||||
| Smoked during Pregnancy** | NS | ||||
| Yes | 1 (14.3%) | 5 (19.2%) | 2 (15.4%) | 0 (0%) | |
| No | 6 (85.7%) | 21 (80.8%) | 11 (84.6%) | 14 (100%) | |
*
Kruskal-Wallis test
**
Chi-square test