Life expectancy in a large cohort of type 2 diabetes patients treated in primary care (ZODIAC-10).

BACKGROUND: Most longitudinal studies showed increased relative mortality in individuals with type 2 diabetes mellitus until now. As a result of major changes in treatment regimes over the past years, with more stringent goals for metabolic control and cardiovascular risk management, improvement of...

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Main Authors: Helen L Lutgers, Esther G Gerrits, Wim J Sluiter, Lielith J Ubink-Veltmaat, Gijs W D Landman, Thera P Links, Reinold O B Gans, Andries J Smit, Henk J G Bilo
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2009-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC2729379?pdf=render
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author Helen L Lutgers
Esther G Gerrits
Wim J Sluiter
Lielith J Ubink-Veltmaat
Gijs W D Landman
Thera P Links
Reinold O B Gans
Andries J Smit
Henk J G Bilo
author_facet Helen L Lutgers
Esther G Gerrits
Wim J Sluiter
Lielith J Ubink-Veltmaat
Gijs W D Landman
Thera P Links
Reinold O B Gans
Andries J Smit
Henk J G Bilo
author_sort Helen L Lutgers
collection DOAJ
description BACKGROUND: Most longitudinal studies showed increased relative mortality in individuals with type 2 diabetes mellitus until now. As a result of major changes in treatment regimes over the past years, with more stringent goals for metabolic control and cardiovascular risk management, improvement of life expectancy should be expected. In our study, we aimed to assess present-day life expectancy of type 2 diabetes patients in an ongoing cohort study. METHODOLOGY AND PRINCIPAL FINDINGS: We included 973 primary care type 2 diabetes patients in a prospective cohort study, who were all participating in a shared care project in The Netherlands. Vital status was assessed from May 2001 till May 2007. Main outcome measurement was life expectancy assessed by transforming actual survival time to standardised survival time allowing adjustment for the baseline mortality rate of the general population. At baseline, mean age was 66 years, mean HbA(1c) 7.0%. During a median follow-up of 5.4 years, 165 patients died (78 from cardiovascular causes), and 17 patients were lost to follow-up. There were no differences in life expectancy in subjects with type 2 diabetes compared to life expectancy in the general population. In multivariate Cox regression analyses, concentrating on the endpoints 'all-cause' and cardiovascular mortality, a history of cardiovascular disease: hazard ratio (HR) 1.71 (95% confidence interval (CI) 1.23-2.37), and HR 2.59 (95% CI 1.56-4.28); and albuminuria: HR 1.72 (95% CI 1.26-2.35), and HR 1.83 (95% CI 1.17-2.89), respectively, were significant predictors, whereas smoking, HbA(1c), systolic blood pressure and diabetes duration were not. CONCLUSIONS: This study shows a normal life expectancy in a cohort of subjects with type 2 diabetes patients in primary care when compared to the general population. A history of cardiovascular disease and albuminuria, however, increased the risk of a reduction of life expectancy. These results show that, in a shared care environment, a normal life expectancy is achievable in type 2 diabetes patients.
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spelling doaj.art-8bb248d597cf495ca01a179d6a297eb92022-12-21T19:46:27ZengPublic Library of Science (PLoS)PLoS ONE1932-62032009-01-0148e681710.1371/journal.pone.0006817Life expectancy in a large cohort of type 2 diabetes patients treated in primary care (ZODIAC-10).Helen L LutgersEsther G GerritsWim J SluiterLielith J Ubink-VeltmaatGijs W D LandmanThera P LinksReinold O B GansAndries J SmitHenk J G BiloBACKGROUND: Most longitudinal studies showed increased relative mortality in individuals with type 2 diabetes mellitus until now. As a result of major changes in treatment regimes over the past years, with more stringent goals for metabolic control and cardiovascular risk management, improvement of life expectancy should be expected. In our study, we aimed to assess present-day life expectancy of type 2 diabetes patients in an ongoing cohort study. METHODOLOGY AND PRINCIPAL FINDINGS: We included 973 primary care type 2 diabetes patients in a prospective cohort study, who were all participating in a shared care project in The Netherlands. Vital status was assessed from May 2001 till May 2007. Main outcome measurement was life expectancy assessed by transforming actual survival time to standardised survival time allowing adjustment for the baseline mortality rate of the general population. At baseline, mean age was 66 years, mean HbA(1c) 7.0%. During a median follow-up of 5.4 years, 165 patients died (78 from cardiovascular causes), and 17 patients were lost to follow-up. There were no differences in life expectancy in subjects with type 2 diabetes compared to life expectancy in the general population. In multivariate Cox regression analyses, concentrating on the endpoints 'all-cause' and cardiovascular mortality, a history of cardiovascular disease: hazard ratio (HR) 1.71 (95% confidence interval (CI) 1.23-2.37), and HR 2.59 (95% CI 1.56-4.28); and albuminuria: HR 1.72 (95% CI 1.26-2.35), and HR 1.83 (95% CI 1.17-2.89), respectively, were significant predictors, whereas smoking, HbA(1c), systolic blood pressure and diabetes duration were not. CONCLUSIONS: This study shows a normal life expectancy in a cohort of subjects with type 2 diabetes patients in primary care when compared to the general population. A history of cardiovascular disease and albuminuria, however, increased the risk of a reduction of life expectancy. These results show that, in a shared care environment, a normal life expectancy is achievable in type 2 diabetes patients.http://europepmc.org/articles/PMC2729379?pdf=render
spellingShingle Helen L Lutgers
Esther G Gerrits
Wim J Sluiter
Lielith J Ubink-Veltmaat
Gijs W D Landman
Thera P Links
Reinold O B Gans
Andries J Smit
Henk J G Bilo
Life expectancy in a large cohort of type 2 diabetes patients treated in primary care (ZODIAC-10).
PLoS ONE
title Life expectancy in a large cohort of type 2 diabetes patients treated in primary care (ZODIAC-10).
title_full Life expectancy in a large cohort of type 2 diabetes patients treated in primary care (ZODIAC-10).
title_fullStr Life expectancy in a large cohort of type 2 diabetes patients treated in primary care (ZODIAC-10).
title_full_unstemmed Life expectancy in a large cohort of type 2 diabetes patients treated in primary care (ZODIAC-10).
title_short Life expectancy in a large cohort of type 2 diabetes patients treated in primary care (ZODIAC-10).
title_sort life expectancy in a large cohort of type 2 diabetes patients treated in primary care zodiac 10
url http://europepmc.org/articles/PMC2729379?pdf=render
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