The article reports that among twins, a higher relative birthweight is linked to slightly higher cognitive performance in childhood and adolescence, with the association strongest for birthweight differences rather than head circumference. The effect appears within twin pairs, suggesting womb-based conditions influence long-term cognition independent of shared genetics and environment.

This topic is of interest to psychology because it illuminates how early physiological development relates to later cognitive outcomes, highlighting the enduring impact of prenatal factors on brain development and the interplay between biology and environment.

Article Title: Differences in birthweight between twins predict later intelligence test scores

Link to PsyPost Article: https://nolinkpreview.com/www.psypost.org/differences-in-birthweight-between-twins-predict-later-intelligence-test-scores/

#TwinBirthweight #PrenatalDevelopment #CognitiveDevelopment #IntelligenceTesting #TwinStudies #BirthWeight #HeadCircumference #PrenatalHealth #BrainDevelopment #LongitudinalResearch

Study links unhealthy neighborhood food environments to poor birth weight outcomes in New York

Higher neighborhood density of unhealthy retail food establishments was associated with a higher risk of delivering a baby that was large-for-gestational age, according to a new study at Columbia Mailman School of Public Health, while neighborhoods with a high density of healthy food retail establishments was linked with a lower risk of giving birth to a baby that was small-for-gestational age.

Medical Xpress

Women living in US states with fewer restrictions related to reproductive rights have lower rates of low birth weight, especially among Black women.

#NICHDimpact #Pregnancy #Contraception #FamilyPlanning #BirthWeight

https://www.ncbi.nlm.nih.gov/pubmed/33067070

Women's Reproductive Rights Policies and Adverse Birth Outcomes: A State-Level Analysis to Assess the Role of Race and Nativity Status - PubMed

Women living in states with fewer restrictions related to reproductive rights have lower rates of low birth weight, especially for Black women.

PubMed

Recent research suggests that if rates of obstetric practices had not changed between 1990 and 2013, then the average U.S. birth weight would have increased over this time.

#Obstetrics #BirthWeight #Births #Fertility

https://www.ncbi.nlm.nih.gov/pubmed/31997231

Worth the Weight? Recent Trends in Obstetric Practices, Gestational Age, and Birth Weight in the United States - PubMed

Birth weight in the United States declined substantially during the 1990s and 2000s. We suggest that the declines were likely due to shifts in gestational age resulting from changes in obstetric practices. Using restricted National Vital Statistics System data linked birth/infant death data for 1990 …

PubMed
This article adds to sparse evidence base on the topic: a recent review by Leroy et al. found only 4 studies have examined #cashtransfer effects on #birthweight & none were in Africa. https://academic.oup.com/jn/article/151/12/3841/6378059
Social Assistance Programs and Birth Outcomes: A Systematic Review and Assessment of Nutrition and Health Pathways

ABSTRACTBackground. Poor birth outcomes are an important global public health problem. Social assistance programs that provide cash or in-kind transfers, such a

OUP Academic