. Author manuscript; available in PMC: 2021 Jul 1.

Published in final edited form as: Am J Obstet Gynecol. 2020 Jan 23;223(1):121.e1–121.e8. doi: 10.1016/j.ajog.2020.01.042

Table 4:

Neonatal outcomes by Healthy Eating Index quartile

	HEI quartile 1 (N=2065)	HEI quartile 2 (N=2065)	HEI quartile 3 (N=2065)	HEI quartile 4 (N=2064)	P value^*
Preterm birth (<37 weeks)	197 (9.5)	171 (8.3)	155 (7.5)	143 (6.9)	0.014
NICU admission	350 (18.0)	362 (18.3)	345 (17.5)	288 (14.6)	0.009
Small for gestational age (<10%ile)	252 (12.8)	218 (11.0)	174 (8.8)	187 (9.5)	<0.001
Low birth weight <2500g	158 (7.7)	129 (6.2)	105 (5.1)	111 (5.4)	0.002
Macrosomia >4000g	214 (10.4)	226 (10.9)	244 (11.8)	273 (13.2)	0.025

Data displayed as N (%).

HEI, Healthy Eating Index; quartile 4 represents the best quality of periconceptional diet. NICU, neonatal intensive care unit

P-value for chi-squared test.