biostudies-literatureHolmager TLFHelsefonden19970https://www.ebi.ac.uk/biostudies/studies/S-EPMC9675768biostudies-literatureUnknown12(1)During the past 30 years, a mortality gap developed between Lolland-Falster (the rural-provincial southeastern part) and the rest of Denmark. A main driver was selective in-migration of Danes with a high risk of death, especially of working-ages. In the present study, we determined the role of economic status in this selective in-migration. We used individual-level data from the Central Population Register and data on income source; self- or publicly supported. The study population included people aged 30-64 and living in Denmark at any time between 1992 and 2018. Mortality rate ratios (MRR) were calculated using Poisson regression for three time-periods: 1992-1999, 2000-2009 and 2010-2018. Two in five in-migrants to Lolland-Falster were people on public support. In 2010-2018, they had an Scientific reportsSelective migration and mortality by economic status in Lolland-Falster, Denmark, 1992-2018.PMC967576820-B-0023Lophaven SNLynge EHolmager TLFMortensen LHfalseSelective migration and mortality by economic status in Lolland-Falster, Denmark, 1992-2018.During the past 30 years, a mortality gap developed between Lolland-Falster (the rural-provincial southeastern part) and the rest of Denmark. A main driver was selective in-migration of Danes with a high risk of death, especially of working-ages. In the present study, we determined the role of economic status in this selective in-migration. We used individual-level data from the Central Population Register and data on income source; self- or publicly supported. The study population included people aged 30-64 and living in Denmark at any time between 1992 and 2018. Mortality rate ratios (MRR) were calculated using Poisson regression for three time-periods: 1992-1999, 2000-2009 and 2010-2018. Two in five in-migrants to Lolland-Falster were people on public support. In 2010-2018, they had an 2022-01-01T00:00:00Z2022 Nov2025-04-18T22:31:04.367Z2025-04-07T10:16:50.659ZS-EPMC96757683640281810.1038/s41598-022-24635-2