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Table 1 Patient characteristics

From: Fetal weight estimation at term – ultrasound versus clinical examination with Leopold’s manoeuvres: a prospective blinded observational study

  n = 543 %
Maternal Age 29.2 ± 5.0  
Primiparous 269 49.5
Multiparous 274 50.5
Mean gestational age at examination [Weeks ± SD in days] 37 + 3/7 (262 d) ± 6.8d  
Mean gestational age at time of delivery [weeks ± SD in days] 39 + 2/7 (275 d) ± 8d  
Mean actual birth weight [g] 3382.9 ± 400.2  
Median time estimation to birth [in days ± SD] 15.6 ± 8  
Mode of delivery
 Spontaneous vaginal delivery 342 63.0
 Operative vaginal delivery 45 8.3
 Caesarean section 156 (100%) 28.7
  Planned/Primary 57 (36.5%) 10.5
  Unplanned/Secondary (including failed induction of labour) 99 (63.5%) 18.2
Mean maternal BMI [kg/m2] 23.9 ± 4.8  
 BMI < 25 379 69.8
 BMI 25–99 164 30.2
Spontaneous onset of labour 429 79.0
Induced onset of labour 114 21.0
Gestational diabetes 29 5.3
Pre-existing diabetes 2 0.4
Chronic or gestational hypertension 9 1.7
Preeclampsia 13 2.4
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