Lancet
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Comparative Study
A comparison of health expectancies over two decades in England: results of the Cognitive Function and Ageing Study I and II.
Whether rises in life expectancy are increases in good-quality years is of profound importance worldwide, with population ageing. We investigate how various health expectancies have changed in England between 1991 and 2011, with identical study design and methods in each decade. ⋯ UK Medical Research Council.