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通常一国之内国民健康水平和经济状况呈正相关关系,收入越高的群体,健康状况越好。然则国家间对比却未必如此,国民的人均收入水平未必和国家健康状况呈正比。在经济发展初期,国民收入水平和健康状况有紧密联系,但经济达到一定水平,健康状况只和国民收入差距相关。因此改善公共健康状况不仅须提升总体国民经济水平,而且必须减少国民经济收入不平等性。
Usually, the national health level and economic status within a country are positively correlated with each other. The higher the income group, the better the health status. However, the contrast between countries is not necessarily the case, national income per capita may not be proportional to the state of health. In the early stage of economic development, the national income level and health status are closely linked, but the economy reaches a certain level, and the state of health is only related to the national income gap. Therefore, improving public health not only requires upgrading the overall national economy, but also reducing the inequality in national income.