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Title: Family Income at Birth & Childhood Obesity: The Developmental Origins of an Obesity Gradient
Resulting in 1 citation.
1. Bilaver, Lucy
Family Income at Birth & Childhood Obesity: The Developmental Origins of an Obesity Gradient
Presented: Chicago, IL, Academy Health Annual Research Meeting, June 2009
Cohort(s): Children of the NLSY79
Publisher: AcademyHealth
Keyword(s): Body Mass Index (BMI); Children, Poverty; Family Income; Obesity; Racial Differences; Teenagers; Weight

Permission to reprint the abstract has not been received from the publisher.

Research Objective: To investigate whether family income gradients in childhood overweight begin at birth. The majority of the work detailing inverse obesity gradients by parental income and socioeconomic status(SES) has relied on cross-sectional data. Given the evidence that obesity is a condition with developmental origins, this work will explore the effect of family income and SES during pregnancy on the development of childhood overweight. The analysis will also also test whether racial disparities exist after controlling for conditions during the prenatal period. Principal Findings: Total net family income and the family specific poverty threshold was used to create a poverty income ratio (PIR). The PIR was categorized into tertiles. In 2006, having family income in the low or middle PIR tertile was associated with 1.7 and 1.9 times the odds of overweight (BMI>95th percentile) compared with children in the upper tertile. There was no association between birth PIR tertile and childhood overweight status. In 1996, the opposite was true. Current family PIR had no association with childhood overweight status while PIR during the prenatal period was associated with a significant negative gradient. In models stratified by survey year and race, there was evidence of some racial disparities in PIR, but the results were inconsistent. During the mid-1990's, for example, Hispanic youth displayed a strong negative gradient in both current and prenatal PIR. There was no income gradient in overweight status among African American youth in this data.
Bibliography Citation
Bilaver, Lucy. "Family Income at Birth & Childhood Obesity: The Developmental Origins of an Obesity Gradient." Presented: Chicago, IL, Academy Health Annual Research Meeting, June 2009.