Table 1 Demographic characteristics of the women included in the proteomics study. Continuous variables were compared with a Welch’s t-test and are summarized as medians (interquartile range). Categorical variables are shown as number (%) and were compared by using Fisher’s exact test.
TNL (n = 13) | Midtrimester (n = 15) | p-value | |
|---|---|---|---|
Age (years) | 22 (21–29) | 30 (26–32) | 0.012 |
BMI*(kg/m2) | 33.6 (30.8–35.4) | 28.3 (25.9–29.8) | 0.151 |
Pre-pregnancy weight (lbs.) | 194.5 (170.5–200.2) | 168 (147.5–199.5) | 0.354 |
Height (cm) | 162.6 (157.5–167.6) | 165.1 (156.2–172.7) | 0.639 |
African-American race (%) | 10/13 (76.9%) | 13/15 (86.7%) | 0.639 |
Smoking status (%) | 3/13 (23.1%) | 1/15 (6.7%) | 0.311 |
Alcohol use (%) | 0/13 (0%) | 0/15 (0%) | 1 |
Nulliparity (%) | 2/13 (15.4%) | 2/15 (13.3%) | 1 |
History of preterm birth (%) | 2/13 (15.4%) | 0/15 (0%) | 0.206 |
Gestational age at amniocentesis (weeks) | 39.1 (38.4–39.3) | 19.1 (17.8–21.8) | < 0.001 |
Gestational age at delivery (weeks) | 39.1 (38.4–39.4) | 39 (38.5–40.1) | 0.557 |
Spontaneous labor (%) | 0/13 (0%) | 11/15 (73.3%) | < 0.001 |
Cesarean delivery (%) | 12/13 (92.3%) | 6/15 (40%) | 0.006 |
Female fetus (%) | 2/13 (15.4%) | 9/15 (60%) | 0.024 |
Birthweight (g) | 3475 (3210–3675) | 3185 (3092.5–3350) | 0.077 |
