Bates Lisa M, Acevedo-Garcia Dolores, Alegría Margarita, Krieger Nancy
School of Public Health, Harvard University, Boston, MA, USA.
Am J Public Health. 2008 Jan;98(1):70-7. doi: 10.2105/AJPH.2006.102814. Epub 2007 Nov 29.
We examined patterns of body mass index (BMI) and obesity among a nationally representative sample of first-, second-, and third-generation Latinos and Asian Americans to reveal associations with nativity or country of origin.
We used data from the National Latino and Asian American Survey (2002-2003) to generate nationally representative estimates of mean BMI and obesity prevalence and explored changes in the distribution of BMI by generational status. Analyses tested the association between generational status and BMI and examined whether this association varied by ethnicity, education, or gender.
We found substantial heterogeneity in BMI and obesity by country of origin and an increase in BMI in later generations among most subgroups. The data suggest different patterns for Latinos and Asian Americans in the nature and degree of distributional changes in BMI with generational status in the United States.
Generational status is associated with increased BMI and obesity among Latinos and Asian Americans. Aggregate estimates not accounting for nativity and country of origin may mask significant heterogeneity in the prevalence of obesity and patterns of distributional change, with implications for prevention strategies.
我们在具有全国代表性的第一代、第二代和第三代拉丁裔及亚裔美国人样本中研究了体重指数（BMI）和肥胖模式，以揭示与出生地或原籍国的关联。
我们使用了来自《全国拉丁裔和亚裔美国人调查》（2002 - 2003年）的数据，以得出具有全国代表性的平均BMI和肥胖患病率估计值，并探讨了按代际状况划分的BMI分布变化。分析测试了代际状况与BMI之间的关联，并检查了这种关联是否因种族、教育程度或性别而异。
我们发现，按原籍国划分，BMI和肥胖情况存在显著差异，且大多数亚组中后代的BMI有所增加。数据表明，在美国，拉丁裔和亚裔美国人在BMI分布变化的性质和程度方面存在不同模式。
代际状况与拉丁裔和亚裔美国人BMI升高及肥胖有关。未考虑出生地和原籍国的总体估计值可能掩盖肥胖患病率和分布变化模式中的显著差异，这对预防策略具有影响。
