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Table 1 Characteristics of mother-newborn pairs (n = 443)

From: Cord blood acrylamide levels and birth size, and interactions with genetic variants in acrylamide-metabolising genes

Characteristics Median (IQR) or n (%)
Maternal
 Age, y 30 (27–32)
 Pre-gestational BMI, kg/m2 23.5 (21.3–26.6)
 Gestational weight gain, kg 14 (11.0–17.5)
 Maternal education
   Low 48 (10.9%)
   Middle 142 (32.3%)
   High 250 (56.8%)
 Smoking during pregnancy
   Yes 63 (14.2%)
   No 380 (85.8%)
Number of cigarettes smoked per daya 9 (5–10)
 Parity
   1 236 (53.3%)
   2 152 (34.3%)
   ≥ 3 55 (12.4%)
Newborn
 Sex
   Male 229 (51.7%)
   Female 214 (49.3%)
 Ethnicity
   European 393 (88.7%)
   Non-European 50 (11.3%)
Acrylamide hemoglobin adducts (pmol/ g hemoglobin) 13.2 (10.4–17.6)
Glycidamide hemoglobin adducts (pmol/ g hemoglobin) (n = 393) 13.3 (10.2–18.0)
Glycidamide to acrylamide ratio (n = 393)
Gestational age, w
0.92 (0.76–1.10)
40 (39–40)
Birth weight, g 3430 (3140–3720)
Birth height, cm 50 (49–52)
Birth head circumference, cm 34 (33–35)
  1. IQR interquartile range
  2. aamong the women who reported to have smoked during pregnancy