University of South Carolina, Arnold School of Public Health, Columbia, SC, USA.
Environ Health. 2009 Dec 8;8:55. doi: 10.1186/1476-069X-8-55.
We evaluated the impact of migration to the USA-Mexico border city of El Paso, Texas (USA), parental language preference, and Hispanic ethnicity on childhood asthma to differentiate between its social and environmental determinants.
Allergy and asthma prevalence was surveyed among 9797 fourth and fifth grade children enrolled in the El Paso Independent School District. Parents completed a respiratory health questionnaire, in either English or Spanish, and a sub-sample of children received spirometry testing at their school. Here we report asthma and allergy outcomes across ethnicity and El Paso residency duration.
Asthma and allergy prevalence increased with longer duration of El Paso residency independent of ethnicity and preferred language. Compared with immigrants who arrived in El Paso after entering first grade (18%), lifelong El Paso residents (68%) had more prevalent allergy (OR, 1.72; 95% CI, 1.32 - 2.24), prevalent asthma (OR, 1.75; 95% CI, 1.24 - 2.46), and current asthma (OR, 2.01; 95% CI, 1.37 - 2.95). Spirometric measurements (FEV1/FVC and FEF25-75) also declined with increasing duration of El Paso residency (0.16% and 0.35% annual reduction, respectively).
These findings suggest that a community-wide environmental exposure in El Paso, delayed pulmonary development, or increased health of immigrants may be associated with allergy and asthma development in children raised there.
我们评估了移民到美国得克萨斯州埃尔帕索市（美国）、父母语言偏好和西班牙裔种族对儿童哮喘的影响，以区分其社会和环境决定因素。
在埃尔帕索独立学区就读的 9797 名四至五年级儿童中，调查了过敏和哮喘的患病率。父母用英语或西班牙语填写了一份呼吸道健康问卷，并且对儿童进行了肺功能测试。在此，我们报告了跨种族和埃尔帕索居住时间的哮喘和过敏结果。
哮喘和过敏的患病率随着在埃尔帕索居住时间的延长而增加，与种族和首选语言无关。与那些在进入一年级后才移民到埃尔帕索的移民（18%）相比，在埃尔帕索出生长大的居民（68%）有更高的过敏（OR，1.72；95%CI，1.32-2.24）、哮喘（OR，1.75；95%CI，1.24-2.46）和当前哮喘（OR，2.01；95%CI，1.37-2.95）患病率。肺功能测量（FEV1/FVC 和 FEF25-75）也随着在埃尔帕索居住时间的延长而逐渐下降（分别为每年 0.16%和 0.35%）。
这些发现表明，埃尔帕索存在一种广泛的社区环境暴露，这种暴露可能与儿童在那里长大的过敏和哮喘发展有关，其原因可能是肺发育延迟或移民的健康状况改善。
