• Tabassum Z Insaf, Benjamin A Shaw, Recai M Yucel, Lisa Chasan-Taber, and David S Strogatz.
• University at Albany, State University of New York, Albany, NY, United States. Electronic address: tabassum.insaf@health.ny.gov.
• Prev Med. 2014 Oct 1; 67: 172317-23.

ObjectiveThe aim of this study is to evaluate the association between lifecourse socioeconomic position (SEP) and changes in body mass index (BMI), and assess disparities in these associations across racial/ethnic groups.MethodsWith longitudinal data from 4 waves of the Americans' Changing Lives Study (1986-2002), we employed mixed-effects modeling to estimate BMI trajectories for 1174 Blacks and 2323 White adults. We also estimated associations between these trajectories and lifecourse SEP variables, including father's education, perceived childhood SEP, own education, income, wealth, and financial security.ResultsBlacks had higher baseline BMIs, and steeper increases in BMI, compared to Whites. Childhood SEP, as measured by high father's education, was associated with lower baseline BMI among Whites. High education was associated with a lower baseline BMI within both race and sex categories. Income had contrasting effects among men and women. Higher income was associated with higher BMI only among males. Associations between indicators of SEP and BMI trajectories were only found for Whites.ConclusionsOur study demonstrates that lifecourse SEP may influence adult BMI differently within different racial and sex groups.Copyright © 2014 Elsevier Inc. All rights reserved.

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