Table 4

- Univariate logistic regression of maternal and neonatal outcomes for maternal age:

Outcome	Maternal age (years)
	<25 (n=591)		25-29 (n=914)	30-34 (n=771)		≥35 (n=696)
	OR (95% CI)	P-value	Reference	OR (95% CI)	P-value	OR (95% CI)	P-value
Maternal outcome
GDM	0.769 (0.556 – 1.064)	0.113	Reference	0.544 (0.365 – 0.811)	0.003*	0.781 (0.557 – 1.094)	0.151
HTN	0.631 (0.271 – 1.468)	0.285	Reference	0.388 (0.125 – 1.211)	0.103	0.901 (0.402 – 2.019)	0.800
GHTN	0.836 (0.353 – 1.979)	0.683	Reference	0.467 (0.146 – 1.498)	0.201	0.538 (0.195 – 1.488)	0.232
Eclampsia and PET	0.758 (0.339 – 1.698)	0.501	Reference	1.081 (0.473 – 2.468)	0.853	0.673 (0.282 – 1.608)	0.373
PPROM	1.101 (0.468 – 2.591)	0.825	Reference	0.520 (0.159 – 1.698)	0.279	1.003 (0.405 – 2.483)	0.995
Delayed 2nd stage of labor	1.720 (0.528 – 5.610)	0.368	Reference	2.074 (0.604 – 7.119)	0.246	1.357 (0.381 – 4.828)	0.637
Mode of delivery	1.043 (0.848 – 1.282)	0.691	Reference	0.936 (0.743 – 1.180)	0.575	1.127 (0.910 – 1.395)	0.273
Fetal and neonatal outcome
Stillborn	0.455 (0.108 – 1.911)	0.282	Reference	0.942 (0.252 – 3.523)	0.929	1.266 (0.400 – 4.008)	0.688
Early neonatal death	0.761 (0.048 – 12.192)	0.847	Reference	4.736 (0.528 – 42.489)	0.165	4.537 (0.529 – 38.926)	0.168
Pre-term	1.365 (1.015 – 1.837)	0.040*	Reference	1.348 (0.973 – 1.869)	0.073	1.058 (0.769 – 1.457)	0.729
Post-date	0.563 (0.303 – 1.045)	0.069	Reference	0.981 (0.536 – 1.794)	0.950	0.707 (0.384 – 1.303)	0.267
LGA	1.199 (0.462 – 3.109)	0.709	Reference	0.840 (0.265 – 2.660)	0.767	0.384 (0.099 – 1.493)	0.167
SGA	1.015 (0.227 – 4.552)	0.984	Reference	1.574 (0.351 – 7.062)	0.554	3.343 (0.929 – 12.034)	0.065
IUGR	0.969 (0.437 – 2.147)	0.938	Reference	2.068 (0.976 – 4.383)	0.058	0.818 (0.345 – 1.939)	0.649
0.918 (0.625 – 1.349)	0.663	Reference	1.119 (0.742 – 1.687)	0.591	0.748 (0.492 – 1.137)	0.174

OR: odd ratios, CI: confidence interval, GDM: gestational diabetes mellitus, HTN: hypertension, GHTN: gestational hypertensions, PPROM: Premature rupture of membrane, LGA: large for gestational age, SGA: small for gestational age, IUGR: intrauterine growth restriction, CI: confidence interval