Immigration, mortality, and national life expectancy in the Nordic region, 1990–2019

Matthew Wallace*, Michael J. Thomas, José Manuel Aburto, Anna Vera Jørring Pallesen, Laust Hvas Mortensen, Astri Syse, Sven Drefahl

*Corresponding author af dette arbejde

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

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Abstract

Period life expectancy is defined as the average number of additional years someone of a given age would live if current age-specific mortality rates were to stay the same for the remainder of their life. It is one of the world's most widely used population health metrics to summarize, compare and rank the mortality situation of countries, forming the basis for various public health, life insurance and retirement policies (Luy et al., 2020). This is because a country's life expectancy reflects, among other things, its existing socio-economic conditions and the quality of its public health and healthcare infrastructure (Ho & Hendi, 2018). Although immigration and emigration events are routinely factored into estimates of life expectancy, the potential impact of the unique – and typically low mortality – of international migrants (Aldridge et al., 2018; Shor & Roelfs, 2021) on national life expectancy has received little attention. A handful of studies have so far been limited to Australia (Page et al., 2007) and the United States (US) (Hendi & Ho, 2021; Mehta et al., 2016; Preston & Elo, 2014). In the context of rising shares of migrants in many countries (United Nations, 2019), alongside their “ageing in place” (Ciobanu et al., 2017), the extent to which the mortality of international migrants affects national population health demands attention.

Here, we aim to understand whether and how the mortality of international migrants affect the estimation and comparison of national life expectancy in four Nordic countries. Denmark, Finland, Norway and Sweden are all high-income countries in the latest stage of health transition. They have a long tradition of collaboration with shared features of social policy and universal welfare (Knudsen et al., 2019). Despite this, health inequality gaps remain large in the region relative to countries with less developed welfare systems (Mackenbach et al., 2016). International migration has been the major driving force behind population growth in the Nordic region in the past few decades. All four countries have experienced large increases in their absolute and relative numbers of migrants, alongside a transformation in migrant inflows from principally intra-Nordic flows to flows from all over the world (Karlsdottir et al., 2018). In recent years, life expectancy gains have slowed within the region; national life expectancies have also converged, although men and women in Denmark and men in Finland continue to lag some way behind Norway and Sweden (Knudsen et al., 2019).
OriginalsprogEngelsk
Artikelnummer101177
TidsskriftSSM - Population Health
Vol/bind19
Antal sider11
ISSN2352-8273
DOI
StatusUdgivet - 2022

Bibliografisk note

Funding Information:
The Swedish Research Council for Health, Working Life and Welfare (Forte); grants: 2019-00603 ‘Migrant mortality advantage lost? Emerging lifespan inequalities among migrants and their descendants in Sweden’; 2016–07105 ‘Migrant Trajectories’; and 2016–07115 ‘Ageing Well’. The Norwegian data analysis was supported by a grant from the Norwegian Research Council (#256678). José Manuel Aburto was supported by the British Academy's Newton International Fellowship (NIFBA19/190679). Laust Hvas Mortensen is supported by the Novo Nordisk Foundation (NNF17OC0027594, NNF17OC0027812). Anna Vera Jørring Pallesen is supported by grants from the Novo Nordisk Foundation (NNF17OC0027812) and Centre for Health Aging, University of Copenhagen. The funding sources mentioned in this statement played no role in the study design; in the collection, analysis, and interpretation of the data; in the writing of the final report; or in the decision to submit the paper for publication. We confirm that we had full access to all of the data in this study and accept the responsibility to submit for publication.

Funding Information:
The Swedish Research Council for Health, Working Life and Welfare (Forte); grants: 2019-00603 ‘Migrant mortality advantage lost? Emerging lifespan inequalities among migrants and their descendants in Sweden’; 2016–07105 ‘Migrant Trajectories’; and 2016–07115 ‘Ageing Well’. The Norwegian data analysis was supported by a grant from the Norwegian Research Council (# 256678 ). José Manuel Aburto was supported by the B ritish Academy's Newton International Fellowship ( NIFBA19/190679 ). Laust Hvas Mortensen is supported by the Novo Nordisk Foundation ( NNF17OC0027594 , NNF17OC0027812 ). Anna Vera Jørring Pallesen is supported by grants from the Novo Nordisk Foundation ( NNF17OC0027812 ) and Centre for Health Aging, University of Copenhagen . The funding sources mentioned in this statement played no role in the study design; in the collection, analysis, and interpretation of the data; in the writing of the final report; or in the decision to submit the paper for publication. We confirm that we had full access to all of the data in this study and accept the responsibility to submit for publication.

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