Table 2.

Infant Birth Data and Delivery Room Care

Elective Cesarean SectionTrial of LaborRoutine Vaginal DeliveryP*
n = 497n = 492n = 989
Birth data
 Gestational age by postnatal exama,b39.1 ± 1  39.6 ± 1  39.5 ± 1 t<.0002
 Weight (kg, mean ± SD)a,b,c3.54 ± 0.53.47 ± 0.53.42 ± 0.5<.0002
 Length (cm, mean ± SD)a50 ± 251 ± 250 ± 2<.04
 Head circumference (cm, mean ± SD)a,b,c35.0 ± 1.534.4 ± 1.534.1 ± 1.5<.0002
 Gender, male (n, %)251 (51)252 (51)490 (50)NS
Delivery room care (n, %)
 Apgar ≤6 at 1 mina,c20 (4)48 (10)63 (6)<.002
  ≤6 at 5 min3 (1)6 (1)8 (1)NS
 Pediatrician at deliverya,c131 (26)231 (47)284 (29)<.0001
 Bag and mask ventilationa,c12 (2)33 (7)33 (3)<.001
 Intubation for ventilationa,c2 (0.4)10 (2)6 (1)<.02
 Intubation for meconiuma,b,c21 (4)80 (16)124 (13)<.0002
  • * Overall difference among the three groups.

    a ERCS vs trial of labor, p < .05.

    b ERCS vs vaginal control, p < .05.

    c Trial of labor vs vaginal control, P < .05.

    NS, Not significant.