Table 6.

Secondary outcomes in low-risk nulliparas and low-risk multiparas at ≥39 weeks gestation

Outcome	PRE	POST	P value or adjusted odds ratio (95% CI)
Low-risk mulliparas	n=520	n=509
Epidural	458 (88.1)	468 (91.8)	.06
Cesarean delivery	105 (20.2)	94 (18.4)	0.90 (0.66–1.23)a
Preeclampsia or eclampsia	79 (15.2)	76 (14.9)	.97
Chorioamnionitis	94 (18.1)	110 (21.6)	.18
QBL ≥1500 mL	35 (6.7)	34 (6.7)	.93
Transfusion	19 (3.7)	28 (5.5)	.21
ICU admission	1 (0.2)	0 (0)	—
Severe maternal morbidity excluding transfusionb	6 (1.2)	11 (2.2)	.31
Unexpected newborn complication, severec	11 (2.1)	7 (1.4)	.50
APGAR score <7 at 5 min	6 (1.2)	4 (0.8)	.77
Low-risk multiparas	n=600	n=564
Epidural	401 (66.8)	374 (66.4)	.90
Cesarean delivery	30 (5.0)	33 (5.9)	1.18 (0.71–1.98)a
Preeclampsia or eclampsia	29 (4.8)	36 (6.4)	.31
Chorioamnionitis	23 (3.8)	21 (3.7)	.96
QBL ≥1500 mL	23 (3.8)	12 (2.1)	.13
Transfusion	6 (1.0)	5 (0.9)	.92
ICU admission	0 (0)	0 (0)	—
Severe maternal morbidity excluding transfusionb	3 (0.5)	6 (1.1)	.45
Unexpected newborn complication, severec	2 (0.3)	2 (0.4)	.66
APGAR score <7 at 5 min	1 (0.2)	5 (0.9)	.19

Data is shown as number (percentage).

ICU, intensive care unit; POST, post-implementation deliveries; PRE, pre-implementation deliveries; QBL, quantitative blood loss.

^aAdjusted for maternal age, race and ethnicity, and prepregnancy body mass index

^bSevere maternal morbidity is defined as any of 20 possible acute maternal conditions including, but not limited to, pulmonary edema, sepsis, shock, venous thromboembolism, heart failure, and others; a complete list is available in Appendix A

^cAn Unexpected newborn complication is defined as a moderate or severe neonatal complication, excluding congenital malformations, severe fetal conditions, birthweight <2500 g, or exposure to maternal drug use; a complete list is available in Appendix A.

Jelks. Embracing 39-week elective induction. Am J Obstet Gynecol Glob Rep 2023.