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Table 3 Description of obstetrical data about labor and delivery

From: Does induction of labor for constitutionally large-for-gestational-age fetuses identified in utero reduce maternal morbidity?

Women with a suspected large for gestational age fetus Overall cohort (n = 3077)% [m ± ET] Induction of labor at 37–38 weeks+ 6 d(n = 199)% [m ± ET] Expectant management(n = 2878)% [m ± ET] P value
Mode of delivery (n = 3071) (n = 199) (n = 2872)  
  Spontaneous delivery 52.0 61.3 51.4 <0.0001
  Overall cesareans 30.6 21.6 31.2 .005
  Operative VDa 17.4 17.1 17.4 .90
  Instrumental delivery 94.2b 96.8 94.0  
  Other maneuversc 5.8 3.2 6.0  
Mode of anesthesia (n = 2879) (n = 194) (n = 2685)  
  Spinal anesthesia 13.7 4.6 14.3 .0006
  Epidural anesthesia 68.9 80.4 68.0  
  General anesthesia 2.1 2.6 2.1  
  Other 1.1 0 1.2  
Duration of labor d (n = 1465) (n = 120) (n = 1345)  
  < 2–6 h 39.4 45.8 38.9 .35
  2 - 4 h 36.5 30.0 37.0  
  4 - 6 h 16.2 17.5 16.1  
  ≥ 6–4 h 7.9 6.7 8.0  
Problem during labor e (n = 2910) 34.5 (n = 197) 35.5 (n = 2713) 34.4 .75
Birth weight (n = 3077) [4012 ± 421] (n = 199) [3792 ± 418] (n = 2878) [4028 ± 417] <.0001
  < 3000 g 0.8 2.5 0.7 <.0001
  3000 – 3499 g 9.4 21.1 8.6  
  3500 – 3999 g 37.0 46.8 36.3  
  ≥ 4000 g 52.8 29.6 54.4  
  1. aOperative VD: operative vaginal delivery.
  2. bInstrumental deliveries in the global cohort included: 39.1% with forceps, 11.0% with spatulas, 44.1% by vacuum extractions.
  3. cOther manoeuvers = maneuver for shoulders dystocia, internal cephalic version, total breech extraction, etc.
  4. dFrom 5 cm to full dilatation.
  5. eProblem during labor of any kind [fetal-pelvic disproportion, fetal heart rate anomaly, failure of induction, dynamic dystocia (hypotonic or hypertonic uterine activity or cervical dystocia), dystocia related to an abnormal position or presentation (abnormal position of the fetal head), maternal disease such as fever or hemorrhage.