Erber Oakkar Eva, Stevens June, Bradshaw Patrick T, Cai Jianwen, Perreira Krista M, Popkin Barry M, Gordon-Larsen Penny, Young Deborah R, Ghai Nirupa R, Caan Bette, Quinn Virginia P
Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
Prev Med. 2015 Apr;73:15-21. doi: 10.1016/j.ypmed.2015.01.009. Epub 2015 Jan 17.
Cross-sectional studies examining the association between Western acculturation and BMI in Asians have been inconsistent, and studies on BMI change are lacking.
This study examined the associations between indicators of acculturation (generational status, length of US residence, and age at immigration) and overweight (BMI ≥25kg/m(2)) as well as 5-year BMI changes in 7,073 Chinese, Japanese, Korean, Filipino, and Vietnamese men who lived in the US and were 44-71years old at baseline of the California Men's Health Study (2002-2003).
Indicators of acculturation were reported at baseline. Repeated clinical measures of BMI were extracted from electronic health records (2005-2012).
Using generalized estimating equations we found that lower generational status, shorter duration of US residence and older age at immigration were inversely associated with being overweight. However, analysis of BMI curves using linear mixed models showed that shorter length of US residence and older age at immigration were associated with larger 5-year increases in BMI.
Asian immigrants who were less acculturated had larger BMI increases as they became more acculturated but had not achieved overweight status. Healthy weight interventions among Asians immigrants may be most effective when targeting weight maintenance early in the process of acculturation.
关于西方文化适应与亚洲人体重指数（BMI）之间关联的横断面研究结果并不一致，且缺乏关于BMI变化的研究。
本研究调查了文化适应指标（代际状况、在美国居住时长和移民时年龄）与超重（BMI≥25kg/m²）以及7073名华裔、日裔、韩裔、菲律宾裔和越南裔男性5年BMI变化之间的关联，这些男性居住在美国，在加利福尼亚男性健康研究（2002 - 2003年）基线时年龄为44 - 71岁。
在基线时报告文化适应指标。从电子健康记录中提取BMI的重复临床测量值（2005 - 2012年）。
使用广义估计方程，我们发现较低的代际状况、较短的美国居住时长和较大的移民时年龄与超重呈负相关。然而，使用线性混合模型对BMI曲线进行分析表明，较短的美国居住时长和较大的移民时年龄与5年中BMI的较大增加有关。
文化适应程度较低的亚洲移民在文化适应程度提高但尚未达到超重状态时，BMI增加幅度更大。针对亚洲移民的健康体重干预措施在文化适应过程早期以维持体重为目标时可能最为有效。
