Income in midlife and dementia related mortality over three decades: A Norwegian prospective study

ENeurologicalSci
Bjørn Heine StrandGENIDEM-Group

Abstract

Studies on midlife income and dementia are scarce, and our main aim was to investigate midlife with later risk of dementia related mortality, adjusting for education and dementia related risk factors. The study population consisted of Norwegian men, aged 40-59 years in 1980 at income assessment, which participated in Norwegian health examination studies in the period 1980-2002 where risk factors such as cholesterol level, hypertension, smoking, cardiovascular disease, and diabetes were assessed. Dementia related mortality was defined as a dementia diagnosis on the death certificate until 2012. Cox regression was used. The study included 45,944 participants and 1062 dementia related deaths. There was no association between midlife income and dementia mortality risk (HR = 1.04, 95% confidence interval (CI) 0.85, 1.28 for the lowest fifth of income compared to those in the highest fifth). For total mortality, there was a strong inverse association with income (HR = 1.61, 95% CI 1.53, 1.69), which was attenuated when adjusting for education and risk factors, but still significant (HR = 1.27, 95% CI 1.20, 1.34). Lower educational attainment was significantly associated with increased dementia mortality risk, also after adjustment fo...Continue Reading

Citations

Sep 10, 2019·Australasian Journal on Ageing·Simon BiggsIrja Haapala
Feb 9, 2017·Sociology of Health & Illness·Ian Rees Jones
Feb 12, 2019·Journal of Alzheimer's Disease : JAD·Anna BebeFrans Boch Waldorff

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