Increase in assisted suicide in Switzerland: did the socioeconomic predictors change? Results from the Swiss National Cohort

Objective To determine whether the strong increase in assisted suicides in Switzerland since 2008 is linked to a shift in the socioeconomic factors associated with assisted suicide and its related diagnoses.Methods In a population-based longitudinal study, we investigated assisted suicides in Switze...

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Main Authors: Marcel Zwahlen, Nicole Steck, Christoph Junker
Format: Article
Language:English
Published: BMJ Publishing Group 2018-04-01
Series:BMJ Open
Online Access:https://bmjopen.bmj.com/content/8/4/e020992.full
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author Marcel Zwahlen
Nicole Steck
Christoph Junker
author_facet Marcel Zwahlen
Nicole Steck
Christoph Junker
author_sort Marcel Zwahlen
collection DOAJ
description Objective To determine whether the strong increase in assisted suicides in Switzerland since 2008 is linked to a shift in the socioeconomic factors associated with assisted suicide and its related diagnoses.Methods In a population-based longitudinal study, we investigated assisted suicides in Switzerland over the period 2003–2014. Two groups of younger (25–64 years) and older (65–94 years) persons were analysed separately and compared. We calculated crude rates and used Cox proportional hazard and logistic regression models to examine associations of assisted dying with gender, marital status, education, religion, neighbourhood socioeconomic status and other variables, and investigated trends over time.Results We identified 3941 assisted suicides among 6 237 997 Swiss residents, 80% of which occurred in the older age group. Crude rates of assisted suicide more than tripled during the study period from 3.60 to 11.21 per 100 000 person-years; the increase was more pronounced in the older age group. Cancer was the most common underlying diagnosis (41.8%), but the percentage dying assisted was highest among patients with diseases of the nervous system (5.25% in the younger and 1.23% in the older age group). The factors associated with assisted suicide did not change during the study period. Female gender, higher education, having no religious affiliation, no children and a Swiss passport, living in a neighbourhood with a higher socioeconomic index and living in the French-speaking part of Switzerland were associated with a higher rate.Conclusions The study results do not indicate any shift in socioeconomic factors associated with assisted suicide, but a more pronounced increase in incidence among the elderly.
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spelling doaj-art-76a7165b223a4742a1b0f278ec4b960f2025-02-12T02:45:10ZengBMJ Publishing GroupBMJ Open2044-60552018-04-018410.1136/bmjopen-2017-020992Increase in assisted suicide in Switzerland: did the socioeconomic predictors change? Results from the Swiss National CohortMarcel Zwahlen0Nicole Steck1Christoph Junker2Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland1 Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland2 Federal Statistical Office, Neuchâtel, SwitzerlandObjective To determine whether the strong increase in assisted suicides in Switzerland since 2008 is linked to a shift in the socioeconomic factors associated with assisted suicide and its related diagnoses.Methods In a population-based longitudinal study, we investigated assisted suicides in Switzerland over the period 2003–2014. Two groups of younger (25–64 years) and older (65–94 years) persons were analysed separately and compared. We calculated crude rates and used Cox proportional hazard and logistic regression models to examine associations of assisted dying with gender, marital status, education, religion, neighbourhood socioeconomic status and other variables, and investigated trends over time.Results We identified 3941 assisted suicides among 6 237 997 Swiss residents, 80% of which occurred in the older age group. Crude rates of assisted suicide more than tripled during the study period from 3.60 to 11.21 per 100 000 person-years; the increase was more pronounced in the older age group. Cancer was the most common underlying diagnosis (41.8%), but the percentage dying assisted was highest among patients with diseases of the nervous system (5.25% in the younger and 1.23% in the older age group). The factors associated with assisted suicide did not change during the study period. Female gender, higher education, having no religious affiliation, no children and a Swiss passport, living in a neighbourhood with a higher socioeconomic index and living in the French-speaking part of Switzerland were associated with a higher rate.Conclusions The study results do not indicate any shift in socioeconomic factors associated with assisted suicide, but a more pronounced increase in incidence among the elderly.https://bmjopen.bmj.com/content/8/4/e020992.full
spellingShingle Marcel Zwahlen
Nicole Steck
Christoph Junker
Increase in assisted suicide in Switzerland: did the socioeconomic predictors change? Results from the Swiss National Cohort
BMJ Open
title Increase in assisted suicide in Switzerland: did the socioeconomic predictors change? Results from the Swiss National Cohort
title_full Increase in assisted suicide in Switzerland: did the socioeconomic predictors change? Results from the Swiss National Cohort
title_fullStr Increase in assisted suicide in Switzerland: did the socioeconomic predictors change? Results from the Swiss National Cohort
title_full_unstemmed Increase in assisted suicide in Switzerland: did the socioeconomic predictors change? Results from the Swiss National Cohort
title_short Increase in assisted suicide in Switzerland: did the socioeconomic predictors change? Results from the Swiss National Cohort
title_sort increase in assisted suicide in switzerland did the socioeconomic predictors change results from the swiss national cohort
url https://bmjopen.bmj.com/content/8/4/e020992.full
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AT christophjunker increaseinassistedsuicideinswitzerlanddidthesocioeconomicpredictorschangeresultsfromtheswissnationalcohort