Trends in Life Expectancy and Its Association with Economic Factors in the Belt and Road Countries-Evidence from 2000⁻2014.

All these regression coefficients showed a slightly increasing trend (from low to high quantiles of LE distribution), while the positive association between LE and GDP per capita was stronger in higher quantiles of LE distribution (e.g., 10th percentile estimate of women = 0.23, 95% CI: 0.13–0.33, 90th percentile estimate of women = 0.32, 95% CI: 0.19–0.45) ( Figure 1 a).

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Unemployment rate was positively associated with men’s and women’s LE for part of the quantiles (e.g., quantile ≥ 40th), with an increasing trend ( Figure 1 b).

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