Variable
Expectant management group (N = 603) Induction of labor group (N = 634)
P value
Maternal age at delivery (years)
Mean Range 41 40-50 41 40-50
Parity no. (%)
Nulliparous Multiparous 227 (37,65) 376 (62,35) 252 (39,75) 382 (60,25)
Current smoker no. (%) 32 (5,3) 25 (3,9) 0,250
Medical history no. (%)
Yes No 99 (16,4) 504 (83,6) 118 (18,6) 516 (81,4)
Assisted reproductive technology no. (%) 0,181
Artificial insemination In vitro fertilization Ovodon 10 (1,65) 46 (7,62) 34 (35,63) 9 (1,42) 54 (8,51) 55 (8,67)
Hypertension disorders no. (%)
0,601
Pregestational Gestational Preeclampsia 4 (0,7) 6 (1) 1 (0,1) 6 (0,9) 4 (0,6) 1 (0,1)
Diabetes Mellitus no. (%)
0,070
Pregestational Gestational with diet Gestational with insulin 0 76 (12,6) 4 (0,7) 0 65 (10,3) 10 (1,6)