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Table 2 Maternal characteristics and pregnancy outcomes for macrosomia cases compared to controls

From: Screening circulating proteins to identify biomarkers of fetal macrosomia

  Macrosomia
N = 52
Controls
N = 106
p
Age 33.8 (6.1) 32.6 (4.0) 0.15
Booking BMI 28.3 [24.1–33.7] 23.5 [21.4–26.3] < 0.0001
Nulliparous 15 (28.8%) 46 (43.4%) 0.08
Smoking status
 Current smoking 1 (1.9%) 1 (0.9%) 0.77
 Ex-smoker 21 (23.1%) 21 (19.8%)
 Never smoked 39 (75%) 84 (79.2%)
GDM 4 (7.7%) 9 (8.5%) 1.00
Onset of labour
 Spontaneous 20 (38.5%) 53 (50.0%) 0.10
 Induced 13 (25.0%) 31 (29.2%)
 No labour 19 (36.5%) 22 (20.8%)
Mode of delivery
 Physiological vaginal 21 (40.4%) 53 (50.0%) 0.002
 Instrumental delivery 2 (3.8%) 21 (19.8%)
 Caesarean section 29 (55.8%) 32 (30.2%)
Gestation at delivery (weeks+days) 39+2 (1+0) 39+4 (1+1) 0.04
Birthweight (g) 4352 (348.1) 3487 (406.3) < 0.0001
Birthweight centile 97.9 [96.5–99.4] 47.1 [26.5–67.6] < 0.0001
  1. Data presented as mean (standard deviation) if normally distributed data, as median [interquartile range] if not normally distributed data, and as number (%) if categorical. Some percentages do not sum to 100% due to rounding to one decimal place
  2. BMI Body Mass Index, GA gestational age; GDM gestational diabetes mellitus