Castro Ruben, Fajnzylber Eduardo
Instituto de Políticas Públicas, Universidad Diego Portales, Santiago, Chile.
Escuela de Gobierno, Universidad Adolfo Ibañez, Santiago, Chile.
Cad Saude Publica. 2017 Sep 28;33(9):e00203615. doi: 10.1590/0102-311X00203615.
: The well-known socioeconomic gradient in health does not imply that income inequality by itself has any effect on well-being. However, there is evidence of a positive association between income inequality and adolescent fertility across countries. Nevertheless, this key finding is not focused on low-income countries. This study applies a multilevel logistic regression of country-level adolescent fertility on country-level income inequality plus individual-level income and controls to the Demographic and Health Surveys data. A negative association between income inequality and adolescent fertility was found among low-income countries, controlling for income (OR = 0.981; 95%CI: 0.963-0.999). Different measures and different subsamples of countries show the same results. Therefore, the international association between income inequality and adolescent fertility seems more complex than previously thought.
健康领域中众所周知的社会经济梯度并不意味着收入不平等本身会对幸福感产生任何影响。然而,有证据表明,在不同国家中,收入不平等与青少年生育率之间存在正相关关系。尽管如此,这一关键发现并未聚焦于低收入国家。本研究对人口与健康调查数据应用了一种多层次逻辑回归分析,将国家层面的青少年生育率作为因变量,国家层面的收入不平等加上个体层面的收入及控制变量作为自变量。在控制了收入因素后,研究发现低收入国家中收入不平等与青少年生育率之间存在负相关关系(比值比=0.981;95%置信区间:0.963 - 0.999)。不同的测量方法和不同的国家子样本都显示了相同的结果。因此,收入不平等与青少年生育率之间的国际关联似乎比之前认为的更为复杂。