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Forecast errors are shown for all forecasts Fig. 10 Sensitivity of forecasted life expectancy at birth of the LC-coherent model (right) and the proposed model (left) for Danish women (red) and men (blue) using the RC Sweden (solid lines) and, in addition, France, Italy, and Japan (dashed lines).
Last year's analysis cut forecasted life expectancy by two months.
By comparing these scenarios we quantified shortfalls in mortality reductions by age group and cause, and forecasted life expectancy pathways for Mexico to converge to better performing countries.UNPD-projected death rates yield a 25·9% reduction of premature mortality for Mexico.
Source: Authors' estimations based on data from the Human Mortality Database (2013) Fig. 9 Observed (black line) and forecasted life expectancy at birth (e 0) of our model (blue), the P-spline approach (magenta), the LC model (red), and four of its variants, h0 (light red), h1 (yellow), h2 (green), and coherent (navy blue), for men in the UK (left) and Denmark (right).
Fig. 5 Observed (black line) and forecasted life expectancy at birth (e 0) of our model (blue), the P-spline approach (magenta), the LC model (red), four of its variants—h0 (light red), h1 (yellow), h2 (green), and coherent (navy blue)—the UN Bayesian approach (triangles), and of Eurostat (squares) for women in the UK (left) and Denmark (right).
Fig. 2 Observed (black) and forecasted life expectancy (e 0) of our model for British (left) and Danish (right) women (red) and men (blue); increasing forecast uncertainty is represented by the widening 80, 67, and 50% prediction intervals, whose colors become brighter from the outside to the median (dashed line).
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Raftery et al. (2013) revise the traditional deterministic approach from the UN to forecast life expectancy at birth.
By contrast, the LC model forecasts life expectancy at birth to be relatively low in 2050: For British women, it is 87.95 years, and for Danish women, it is 86.36 years.
Until relatively recently, he recalls, all the best brains in the world were forecasting that life expectancy would stall.
"We find that median forecasts of life expectancy are substantially larger than in existing official forecasts". The study is reported in the latest edition of the science journal Nature.
A forecast of life expectancy based on the average age at death of a person's four grandparents is a simple example of statistical forecasting.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com