Table 1 Maternal and pregnancy characteristics
From: Insulin-like growth factor axis in pregnancies affected by fetal growth disorders
Variables | Appropriately grown (n = 38) | Small for gestational age (n = 16) | Large for gestational age (n = 20) | p value (overall) |
|---|---|---|---|---|
Maternal age (years) | 31.5 (28.7–35.0) | 31.5 (25.2–33.7) | 33.0 (30.0–37.2) | 0.173 |
Parity, n (%) | ||||
 Nulliparous, n (%) | 20 (52.6) | 10 (62.5) | 11 (55.0) | 0.8 |
 Parous, n (%) | 18 (47.4) | 6 (37.5) | 9 (45.0) |  |
Racial origin | ||||
 Caucasian, n (%) | 25 (65.8) | 11 (68.8) | 19 (95.0) | 0.045 |
 Black, n (%) | 7 (18.4) | 3 (18.8) | 1 (5.0) |  |
 Other, (%) | 6 (15.8) | 2 (12.4) | 0 (0) |  |
Smokers, n (%) | 1 (2.6) | 2 (12.5) | 1 (5) | 0.341 |
Maternal body mass index at booking | 23.0 (20.0–25.2) | 22.0 (20.2–24.0) | 26.5 (23.2–36.0)* | 0.002 |
Gestational age at delivery (weeks) | 39.2 (39.0–41.0) | 36.5 (32.2–38.8)* | 39.5 (39.0–40.0) | 0.001 |
Maternal age (years) | 31.5 (28.7–35.0) | 31.5 (25.2–33.7) | 33.0 (30.0–37.2) | 0.173 |
Parity, n (%) | ||||
 Nulliparous, n (%) | 20 (52.6) | 10 (62.5) | 11 (55.0) | 0.8 |
 Parous, n (%) | 18 (47.4) | 6 (37.5) | 9 (45.0) |  |
Birthweight percentile | 54.5 (21.0–76.2) | 1.4 (0.3–6.8)* | 98.3 (95.2–99.6)* | <0.001 |