Income inequalities in stroke incidence and mortality: Trends in stroke-free and stroke-affected life years based on German health insurance data.

BACKGROUND:Due to substantial improvements in prevention and therapy, stroke incidence and mortality rates have decreased during the last decades, but evidence is still lacking on whether all socioeconomic groups benefited equally and how the length of life affected by stroke developed over time. Ou...

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Main Authors: Juliane Tetzlaff, Siegfried Geyer, Fabian Tetzlaff, Jelena Epping
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2020-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0227541
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author Juliane Tetzlaff
Siegfried Geyer
Fabian Tetzlaff
Jelena Epping
author_facet Juliane Tetzlaff
Siegfried Geyer
Fabian Tetzlaff
Jelena Epping
author_sort Juliane Tetzlaff
collection DOAJ
description BACKGROUND:Due to substantial improvements in prevention and therapy, stroke incidence and mortality rates have decreased during the last decades, but evidence is still lacking on whether all socioeconomic groups benefited equally and how the length of life affected by stroke developed over time. Our study investigates time trends in stroke-free life years and life years affected by stroke. Special emphasis is given to the question whether trends differ between income groups, leading to decreasing or increasing social inequalities. METHODS:The analyses are based on claims data of a German statutory health insurance company of the two time periods 2006-2008 and 2014-2016. Income inequalities and time trends in incidence and mortality risks were estimated using multistate survival models. Trends in stroke-free life years and life years affected by stroke are analysed separately for income groups by applying multistate life table analyses. RESULTS:Stroke incidence and mortality risks decreased in men and women in all income groups. While stroke-free lifetime could be gained in men having higher incomes, improvements in mortality counterbalanced decreasing incidences, leading to increases in life years affected by stroke among men of the lower and higher income group. Among women, no significant changes in life years could be observed. CONCLUSIONS:Changes in stroke-affected life years occur among men in all income groups, but are more pronounced in the higher income group. However, irrespective of the income group the proportion of stroke-affected life years remains quite stable over time, pointing towards constant inequalities. Further research is needed on whether impairments due to stroke reduced over time and whether all socioeconomic groups are affected equally.
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spelling doaj.art-bf7a1bfde79148d4908015a36066ff2d2022-12-21T19:07:40ZengPublic Library of Science (PLoS)PLoS ONE1932-62032020-01-01151e022754110.1371/journal.pone.0227541Income inequalities in stroke incidence and mortality: Trends in stroke-free and stroke-affected life years based on German health insurance data.Juliane TetzlaffSiegfried GeyerFabian TetzlaffJelena EppingBACKGROUND:Due to substantial improvements in prevention and therapy, stroke incidence and mortality rates have decreased during the last decades, but evidence is still lacking on whether all socioeconomic groups benefited equally and how the length of life affected by stroke developed over time. Our study investigates time trends in stroke-free life years and life years affected by stroke. Special emphasis is given to the question whether trends differ between income groups, leading to decreasing or increasing social inequalities. METHODS:The analyses are based on claims data of a German statutory health insurance company of the two time periods 2006-2008 and 2014-2016. Income inequalities and time trends in incidence and mortality risks were estimated using multistate survival models. Trends in stroke-free life years and life years affected by stroke are analysed separately for income groups by applying multistate life table analyses. RESULTS:Stroke incidence and mortality risks decreased in men and women in all income groups. While stroke-free lifetime could be gained in men having higher incomes, improvements in mortality counterbalanced decreasing incidences, leading to increases in life years affected by stroke among men of the lower and higher income group. Among women, no significant changes in life years could be observed. CONCLUSIONS:Changes in stroke-affected life years occur among men in all income groups, but are more pronounced in the higher income group. However, irrespective of the income group the proportion of stroke-affected life years remains quite stable over time, pointing towards constant inequalities. Further research is needed on whether impairments due to stroke reduced over time and whether all socioeconomic groups are affected equally.https://doi.org/10.1371/journal.pone.0227541
spellingShingle Juliane Tetzlaff
Siegfried Geyer
Fabian Tetzlaff
Jelena Epping
Income inequalities in stroke incidence and mortality: Trends in stroke-free and stroke-affected life years based on German health insurance data.
PLoS ONE
title Income inequalities in stroke incidence and mortality: Trends in stroke-free and stroke-affected life years based on German health insurance data.
title_full Income inequalities in stroke incidence and mortality: Trends in stroke-free and stroke-affected life years based on German health insurance data.
title_fullStr Income inequalities in stroke incidence and mortality: Trends in stroke-free and stroke-affected life years based on German health insurance data.
title_full_unstemmed Income inequalities in stroke incidence and mortality: Trends in stroke-free and stroke-affected life years based on German health insurance data.
title_short Income inequalities in stroke incidence and mortality: Trends in stroke-free and stroke-affected life years based on German health insurance data.
title_sort income inequalities in stroke incidence and mortality trends in stroke free and stroke affected life years based on german health insurance data
url https://doi.org/10.1371/journal.pone.0227541
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AT fabiantetzlaff incomeinequalitiesinstrokeincidenceandmortalitytrendsinstrokefreeandstrokeaffectedlifeyearsbasedongermanhealthinsurancedata
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