Impact of obesity on life expectancy levels and trends in EuropeDe invloed van obesitas op de levensverwachting in EuropaImpact of obesity on life expectancy among different European countries: secondary analysis of population-level data over the 1975–2012 periodPast trends in obesity-attributable mortality in eight European countries: an application of age–period–cohort analysisImpact of different estimation methods on obesity-attributable mortality levels and trends: the case of The NetherlandsImpact of obesity on life expectancy levels and trends in Europe