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Table 1 Patients’ demographic characteristics and perinatal outcome in pregnancies with normal birthweight or small-for-gestational age neonates

From: “Screening for small-for-gestational age neonates at early third trimester in a high-risk population for preeclampsia”

Characteristics Normal birthweight (n = 328) SGA (n = 50) P
Maternal age (years) 35.5 ± 4.5 34.7 ± 4.1 0.239
Maternal weight (kg) 67.8 ± 13.1 61.6 ± 11.4 < 0.001*
Maternal height (cm) 164.9 ± 6.1 163.3 ± 6.7 0.089
BMI (kg/m2) 25.0 ± 4.7 23.1 ± 3.7 0.004*
Smoking (%) 7.3 (24) 8 (4) 0.776
Nulliparity (%) 63.1 (207) 78 (39) 0.040*
ART conception (%) 9.8 (32) 4 (2) 0.286
Pre-existing DM (%) 0.3 (1) 0 0.696
Chronic hypertension (%) 4.9 (16) 4 (2) 0.786
Kidney disease (%) 1.2 (4) 0 0.432
Autoimmune disease (%) 4 (13) 2 (1) 0.704
Thrombophilia (%) 1.5 (5) 6 (3) 0.075
Previous PE (%) 4.6 (15) 0 0.236
Previous SGA (%) 2.1 (7) 6 (3) 0.133
Treatment with AAS (%) 11.3 (37) 14 (7) 0.576
GA at delivery 38.8 ± 1.8 38.5 ± 1.8 0.259
Induction of labour (%) 24 (79) 40 (20) 0.017*
GA at induction 39.42 ± 1.62 39.1 ± 1.33 0.226
Cesarean delivery (%) 32 (105) 36 (18) 0.5
Birth weight (mean, g) 3200 ± 493 2498 ± 352 < 0.001*
Neonatal feminine sex (%) 41.2 (135) 32 (16) 0.218
Arterial pH 7.25 ± 0.08 7.27 ± 0.06 0.181
Apgar 5’ 9.98 ± 0.64 9.92 ± 0.27 0.995
5’ Apgar score < 7 (%) 0.6 (2) 0 0.580
Arterial pH < 7.15 (%) 10.5 (25) 0 0.055
Preeclampsia (%) 5.8 (19) 8 (4) 0.525
Gestational Hypertension (%) 2.4 (8) 0 0.604
  1. Quantitative variables were expressed as mean ± SD
  2. Categorical variables were expressed as % (n)
  3. (*p < 0.05)
  4. SGA Small-for-gestational age, BMI Body mass index, ART Assisted reproduction technique, DM Diabetes mellitus, PE Preeclampsia, GA Gestational age