Cruz Mariño Alexandro Vinicio, Cooper Philip, Chico Martha, Romero-Sandoval Natalia, Rodríguez Alejandro
Universidad Internacional del Ecuador UIDE, School of Medicine, Quito, Ecuador Universidad Internacional del Ecuador Universidad Internacional del Ecuador School of Medicine Quito Ecuador.
Facultad de Ciencias Médicas de la Salud y la Vida Pontificia Universidad Católica del Ecuador, Quito, Ecuador Pontificia Universidad Católica del Ecuador Facultad de Ciencias Médicas de la Salud y la Vida Pontificia Universidad Católica del Ecuador Quito Ecuador.
Colomb Med (Cali). 2024 Jun 30;55(2):e2035929. doi: 10.25100/cm.v55i2.5929. eCollection 2024 Apr-Jun.
Differences in asthma prevalence between urban and rural areas have been observed worldwide. Epidemiological studies in middle- and low-income countries suggest that internal migration processes may partly explain these disparities.
To investigate the association between internal migration and asthma in children living in transitional areas of Ecuador.
A cross-sectional study was conducted using data from a birth cohort of children living in a tropical coastal region in northwestern Ecuador. Asthma indicators included wheezing in the past 12 months, ever wheezing, and asthma diagnosis by a doctor. Internal migration was defined as a change of residence between geographical units: cantonal, parish, and census tract. The relationship between asthma and migration was analyzed using binary logistic regression.
Of 2,404 participants, 1,818 children met the inclusion criteria. Among them, 2.8% experienced cantonal migration, 11.9% parish migration, and 24.6% census tract migration. The prevalence of wheezing in the past 12 months, ever wheezing, and asthma diagnosis by a doctor was 13.1%, 33.3%, and 7%, respectively. Children with a history of cantonal migration were more likely to have experienced wheezing compared to those who did not migrate (OR: 1.56; 95%CI: 0.87-2.79).
Changes in residence between smaller or adjacent geographic units appeared not to be associated with asthma prevalence. However, cantonal migration may play a role in respiratory health outcomes.
全球范围内已观察到城乡地区哮喘患病率存在差异。中低收入国家的流行病学研究表明，国内移民过程可能部分解释了这些差异。
调查厄瓜多尔过渡地区儿童国内移民与哮喘之间的关联。
利用厄瓜多尔西北部热带沿海地区儿童出生队列的数据进行了一项横断面研究。哮喘指标包括过去12个月内的喘息、曾经喘息以及医生诊断的哮喘。国内移民被定义为地理单元（县、教区和普查区）之间的居住地变化。使用二元逻辑回归分析哮喘与移民之间的关系。
在2404名参与者中，1818名儿童符合纳入标准。其中，2.8%经历了县级迁移，11.9%经历了教区迁移，24.6%经历了普查区迁移。过去12个月内喘息、曾经喘息以及医生诊断哮喘的患病率分别为13.1%、33.3%和7%。与未迁移的儿童相比，有县级迁移史的儿童更有可能经历喘息（比值比：1.56；95%置信区间：0.87 - 2.79）。
较小或相邻地理单元之间的居住地变化似乎与哮喘患病率无关。然而，县级迁移可能对呼吸健康结果有影响。
