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Aims: Cross-country comparisons of mortality and longevity patterns of Nordic populations could contribute with novel insights into the compositional changes of these populations. We investigated three metrics of population ageing: the proportion of the population aged 75+ and 90+ years, the proportion of birth cohorts reaching 75 and 90 years, and life expectancy (LE) at age 75 and 90 years in Sweden, Norway, Iceland, Denmark and Finland, in the period 1990–2014. Methods: Demographic information was collected from national statistical databases and the Human Mortality Database. Results: All metrics on population ageing increased during the study period, but there were some cross-country variations. Finland experienced a notably steep increase in the proportion of 75+ and 90+ year olds compared to the other countries. Regarding the proportion reaching old ages, the Finnish lagged behind from the beginning, but females decreased this difference. The Danes were more similar to the other countries at the beginning, but did not experience the same increase over time. Gender-specific LE at age 75 and 90 years was similar overall in the five countries. Conclusions: Developments in cross-country variation suggest that survival until old age has become more similar for Finnish females and more different for Danish males and females compared with the other countries in recent decades. This provides perspectives on the potential to improve longevity in Denmark and Finland. Similarities in LE in old age suggest that expected mortality in old age has been more similar throughout the study period. [ABSTRACT FROM AUTHOR]

Background: Several studies have revealed widening of inequalities in life expectancy, but little is known about the recent changes in health expectancy nationally and between socioeconomic groups. This study examines dynamics of national and education-specific life expectancy and health expectancies at age 50 years in Denmark from 2004/2007 to 2015., Methods: Nationwide register data on education and mortality were linked and combined with Danish health data from the Survey of Health, Ageing and Retirement in Europe and changes in life expectancy and three health expectancy indicators were estimated by Sullivan's method., Results: From 2004 to 2015, national life expectancy at age 50 years increased by 2.4 years for men and 2.1 years for women. Simultaneously, after an initial rapid improvement from 2004 to 2007, the pace of progress in health expectancy decreased. From 2007 to 2015, the difference in life expectancy at age 50 years between men with long and short education increased from 4.3 to 5.0 years. For women, the corresponding increase in the life expectancy gap was less pronounced from 3.5 to 3.8 years. The educational gap in lifetime without long-term illness decreased from 4.6 years to 3.1 years for men and from 6.1 years to 4.6 years for women. On the contrary, the educational gap increased for lifetime without activity limitations and in self-rated good health., Conclusions: Previously observed improvements in health expectancy in Denmark slowed down despite continuing progress in life expectancy. This worrying change coincides with persistent educational inequalities in life expectancy and health expectancy and is a challenge to a sustainable social and health development in the future., Competing Interests: Declaration of conflicting interestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Cross-national comparisons and ranking of summary measures of population health sometimes give rise to inconsistent and diverging conclusions. In order to minimise confusion, international comparative studies ought to be based on well-harmonised data with common standards of definitions and documentation. Calculation methods and results should be communicated clearly and exactly.