Goulão Beatriz, Santos Osvaldo, Carmo Isabel do
Cad Saude Publica. 2015 Feb;31(2):229-45. doi: 10.1590/0102-311x00211913.
Immigrants may be more vulnerable to obesity as a result of the immigration process. The aim of this article is to summarize current knowledge about the impact of immigration on body mass index (BMI). A systematic review was performed in accordance with PRISMA guidelines through a database search of scientific articles (last updated in August 2014). Thirty-nine articles were included and assessed. Results varied according to ethnic background, country of origin and host country. A consistent positive association between BMI and time since immigration was found among Hispanic, European and African immigrants. Less than half of the studies observed a positive association among Asian immigrants. The quality of the majority of the studies assessed was poor, reflecting a need to improve methodology and concept definition. Immigration appears to have a deteriorative effect on BMI. Underlying causes may include changes in nutrition and physical activity, psychological and social factors, and genetic susceptibility and these aspects should be included as moderator variables in future studies.
由于移民过程，移民可能更容易患肥胖症。本文旨在总结当前关于移民对体重指数（BMI）影响的知识。通过对科学文章的数据库搜索（最后更新于2014年8月），按照PRISMA指南进行了系统综述。纳入并评估了39篇文章。结果因种族背景、原籍国和东道国而异。在西班牙裔、欧洲和非洲移民中，发现BMI与移民后的时间之间存在一致的正相关。不到一半的研究观察到亚洲移民之间存在正相关。大多数评估研究的质量较差，这反映出需要改进方法和概念定义。移民似乎对BMI有恶化影响。潜在原因可能包括营养和身体活动的变化、心理和社会因素以及遗传易感性，这些方面应作为调节变量纳入未来研究。
