Immigrant assimilation and BMI and waist size

A longitudinal examination among hispanic and chinese participants in the multi-ethnic study of atherosclerosis

Sandra S. Albrecht, Ana V Diez Roux, Namratha R. Kandula, Theresa L. Osypuk, Hanyu Ni, Sandi Shrager

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Objective US birth and longer length of US residence among the foreign-born have been linked to higher anthropometric measures. However, previous studies have been cross sectional and few have examined heterogeneity by ethnic group. Cross-sectional findings that show immigrant weight converging to US-born levels with longer time in the United States imply that immigrants' weight is increasing at a faster rate relative to US-born individuals. Prospective studies are necessary to confirm this pattern. Design and Methods Using longitudinal data from 1,486 Hispanic and 802 Chinese adults aged 45-84 years in the Multi-ethnic Study of Atherosclerosis, we examined whether foreign-born participants experienced greater increases in BMI and waist circumference (WC) than the US-born over a median follow-up of 5 years. We also investigated heterogeneity in these associations by Hispanic subgroup. Results Among Hispanics and Chinese, the foreign-born had a lower adjusted mean BMI and WC at baseline than the US-born, but there were no significant differences in BMI or WC change over time. There was heterogeneity by Hispanic subgroup: despite small baseline nativity differences in WC, foreign-born Mexican Hispanics had a greater annual mean increase in WC over time compared to US-born Mexican Hispanics (mean difference in annual change = 0.28 cm, P = 0.03). There were no nativity differences in the rate of WC increase over time among non-Mexican Hispanics. Foreign-born Mexican Hispanics also experienced a faster rate of WC increase compared to foreign-born non-Mexican Hispanics (mean difference in annual change = 0.24 cm, P = 0.01). Conclusions Longer time in the United States, examined prospectively, may only be linked to adverse anthropometric changes in some immigrant groups.

Original languageEnglish (US)
Pages (from-to)1695-1703
Number of pages9
JournalObesity
Volume21
Issue number8
DOIs
StatePublished - Aug 1 2013

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Hispanic Americans
Waist Circumference
Atherosclerosis
Weights and Measures
Ethnic Groups
Parturition
Prospective Studies

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Immigrant assimilation and BMI and waist size : A longitudinal examination among hispanic and chinese participants in the multi-ethnic study of atherosclerosis. / Albrecht, Sandra S.; Roux, Ana V Diez; Kandula, Namratha R.; Osypuk, Theresa L.; Ni, Hanyu; Shrager, Sandi.

In: Obesity, Vol. 21, No. 8, 01.08.2013, p. 1695-1703.

Research output: Contribution to journalArticle

Albrecht, Sandra S. ; Roux, Ana V Diez ; Kandula, Namratha R. ; Osypuk, Theresa L. ; Ni, Hanyu ; Shrager, Sandi. / Immigrant assimilation and BMI and waist size : A longitudinal examination among hispanic and chinese participants in the multi-ethnic study of atherosclerosis. In: Obesity. 2013 ; Vol. 21, No. 8. pp. 1695-1703.
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