UR5 Health, Epidemiology and Mortality, Institut National d'Etudes Demographiques, Paris, France
International Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA.
BMJ Glob Health. 2022 Aug;7(8). doi: 10.1136/bmjgh-2022-009523.
To assess the health cost (or benefit) of crisis-driven migration by focusing on the infant mortality rate (IMR) of the Colombian diaspora in Venezuela and the Venezuelan diaspora in Colombia.
We compare national to diaspora IMRs over the period 1980-2018. National IMRs are death-to-birth ratios reported by the official vital statistics, whereas diaspora IMRs are calculated by using a semiparametric regression model on the summary birth histories collected in the population censuses. We analyse the diaspora IMRs according to whether their arrival corresponds to precrisis or crisis-driven migration.
During crises, diaspora IMRs show better health outcomes than those of non-migrants. The Colombian diaspora had an average annual IMR of -1.8 (95% CI -3.3 to 0.28) per year and the Venezuelan diaspora had -4.5 (95% CI -5.8 to -3.3). However, the protective role of migration is neither guaranteed nor consistent, as a crisis in the country of destination exposes immigrants to worse health outcomes than the non-migrant population.
Migration is a survival strategy that allows people to reduce the negative effects they face during a crisis in their country of origin. The distinction between crisis-driven and precrisis migration provides a framework for assessing the cross-border effects on health outcomes due to diaspora composition, particularly when populations face adverse conditions.
通过关注哥伦比亚侨民在委内瑞拉和委内瑞拉侨民在哥伦比亚的婴儿死亡率（IMR），评估危机驱动移民的健康成本（或收益）。
我们比较了 1980 年至 2018 年期间的国家和侨民 IMR。国家 IMR 是官方人口统计报告的死亡与出生比例，而侨民 IMR 是通过在人口普查中收集的汇总出生史使用半参数回归模型计算得出的。我们根据移民的到来是危机前还是危机驱动的，分析了侨民 IMR。
在危机期间，侨民的 IMR 显示出比非移民更好的健康结果。哥伦比亚侨民的平均年 IMR 为-1.8（95%置信区间-3.3 至 0.28），委内瑞拉侨民的平均年 IMR 为-4.5（95%置信区间-5.8 至-3.3）。然而，移民的保护作用既没有得到保证，也不是一成不变的，因为目的地国家的危机使移民面临比非移民人口更糟糕的健康结果。
移民是一种生存策略，它允许人们减轻他们在原籍国面临的危机的负面影响。区分危机驱动和危机前移民为评估由于侨民构成而对健康结果产生的跨境影响提供了一个框架，特别是当人口面临不利条件时。
