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Preconception Diet Quality Is Associated with Birth Weight for Gestational Age Among Women in the Hispanic Community Health Study/Study of Latinos.

TitlePreconception Diet Quality Is Associated with Birth Weight for Gestational Age Among Women in the Hispanic Community Health Study/Study of Latinos.
Publication TypePublication
Year2021
AuthorsSiega-Riz AMaria, Vladutiu CJ, Butera NM, Daviglus M, Gellman M, Isasi CR, Stuebe AM, Talavera GA, Van Horn L, Sotres-Alvarez D
JournalJ Acad Nutr Diet
Volume121
Issue3
Pagination458-466
Date Published2021 03
ISSN2212-2672
KeywordsAdult, Birth Weight, diet, Diet, Healthy, Female, Gestational Age, Hispanic Americans, Humans, Maternal Nutritional Physiological Phenomena, Nutritional Status, Obesity, overweight, Preconception Care, Pregnancy, Pregnancy Complications, United States
Abstract

BACKGROUND: The nutritional status of women in the preconception period is of paramount importance due to its role in reproduction.OBJECTIVE: Our aim was to assess overall diet quality during the preconception period and its association with infant birth weight adjusted for gestational age (GA).DESIGN: This is an observational longitudinal cohort of Hispanic people living in the United States.PARTICIPANTS/SETTING: Data are from the Hispanic Community Health Study/Study of Latinos baseline (2008-2011) and second clinic examinations (2014-2017). Included are the first 497 singleton live-born infants among the 2,556 women (younger than 45 years) who attended the second visit. Field sites were located in Miami, FL; Bronx, NY; Chicago, IL; and San Diego, CA, and represent individuals with heritage from Cuba, Dominican Republic, Mexico, Puerto Rico, and Central and South America.MAIN EXPOSURE: Diet assessment included two 24-hour recalls from baseline. The 2010 Healthy Eating Index (HEI-2010) was used to measure diet quality, with higher scores indicating better quality.STATISTICAL ANALYSES PERFORMED: Complex survey linear regression estimated the association between HEI-2010 scores (continuous variable and categorized into tertiles) and birth-weight z score and birth weight for GA percentile.RESULTS: Mean (standard deviation) age of women was 25.8 (5.2) years and 36.4% were classified as underweight or normal weight, 30.0% were overweight, and 33.6% had obesity at baseline. Mean (standard deviation) HEI-2010 score was 56.5 (13.4), and by weight classifications was 54.4 (14.1) for underweight or normal weight and 57.7 (12.8) for overweight or obesity. Median (interquartile range) birth-weight z score was 0.5 (interquartile range [IQR], -0.2 to 1.3) overall and 0.2 (IQR, -0.5 to 1.0), 0.6 (IQR, -0.2 to 1.3), and 0.5 (IQR, -0.2 to 1.4) for the first, second, and third HEI-2010 tertile, respectively. Median birth weight for GA percentile was 68.2 (IQR, 40.2 to 89.7) overall, and 56.8 (IQR, 29.6 to 85.0), 71.5 (IQR, 42.8 to 90.0), and 70.1 (IQR, 42.9 to 91.2) by HEI-2010 tertile. In adjusted models, the highest tertile of the HEI-2010 score was associated with a higher birth-weight z score and birth weight for GA percentile, and the continuous HEI-2010 score was only associated with birth weight for GA percentile. Preconception body mass index (calculated as kg/m) did not modify these associations.CONCLUSIONS: Overall diet quality, as measured by the HEI-2010, in the preconception period is associated with infant birth weight adjusted for GA among US Hispanic and Latina women.

DOI10.1016/j.jand.2020.09.039
Alternate JournalJ Acad Nutr Diet
PubMed ID33187928
Grant ListN01HC65233 / HL / NHLBI NIH HHS / United States
N01HC65234 / HL / NHLBI NIH HHS / United States
N01HC65235 / HL / NHLBI NIH HHS / United States
N01HC65236 / HL / NHLBI NIH HHS / United States
N01HC65237 / HL / NHLBI NIH HHS / United States
MS#: 
0427
Manuscript Lead/Corresponding Author Affiliation: 
Coordinating Center - Collaborative Studies Coordinating Center - UNC at Chapel Hill
ECI: 
Manuscript Status: 
Published