Risk of diabetic complications and subsequent mortality among individuals with schizophrenia and diabetes - a population-based register study.
Cause of death
Diabetes
Diabetic complications
Mortality
Schizophrenia
Journal
Schizophrenia research
ISSN: 1573-2509
Titre abrégé: Schizophr Res
Pays: Netherlands
ID NLM: 8804207
Informations de publication
Date de publication:
04 2020
04 2020
Historique:
received:
26
03
2019
revised:
10
01
2020
accepted:
20
01
2020
pubmed:
8
2
2020
medline:
22
6
2021
entrez:
8
2
2020
Statut:
ppublish
Résumé
Individuals with schizophrenia often develop diabetes, but little is known about their risk of diabetic complications. We aimed to study incidence of registered diabetic complications and subsequent mortality in individuals with schizophrenia and diabetes compared to individuals with diabetes only. We conducted a cohort study using nationwide registers and followed all individuals in the entire Danish population diagnosed with diabetes from 1997 to 2017. Incidence rate ratios (IRR) of diabetic complications, all-cause and cause-specific mortality rate ratios (MRR) were estimated by Cox regression comparing individuals diagnosed with schizophrenia and diabetes to individuals diagnosed only with diabetes. In a cohort of 239,118 individuals with diagnosed diabetes, the incidence of any diabetic complication was similar in females with schizophrenia and diabetes compared to females with diabetes only; IRR = 0.93 (95%CI: 0.84-1.02), and significantly lower in males; IRR = 0.85 (95%CI: 0.78-0.92). The all-cause mortality for individuals with a diagnosis of a diabetic complication was higher in individuals with schizophrenia and diabetes than in those with diabetes only; MRR = 1.92 (95%CI: 1.65-2.23) for females and MRR = 1.69 (95%CI: 1.49-1.92) for males. Among those without diabetic complications, schizophrenia was also associated with a higher mortality. Individuals with schizophrenia and diabetes had similar or lower rates of diabetic complications, compared to those with diabetes only. Among those with diabetic complications, schizophrenia was associated with higher mortality. Similar, among those without diabetic complications, schizophrenia was also associated with higher mortality. Hence, diabetic complications do not seem to explain the excess mortality seen in individuals with schizophrenia.
Sections du résumé
BACKGROUND
Individuals with schizophrenia often develop diabetes, but little is known about their risk of diabetic complications. We aimed to study incidence of registered diabetic complications and subsequent mortality in individuals with schizophrenia and diabetes compared to individuals with diabetes only.
METHODS
We conducted a cohort study using nationwide registers and followed all individuals in the entire Danish population diagnosed with diabetes from 1997 to 2017. Incidence rate ratios (IRR) of diabetic complications, all-cause and cause-specific mortality rate ratios (MRR) were estimated by Cox regression comparing individuals diagnosed with schizophrenia and diabetes to individuals diagnosed only with diabetes.
RESULTS
In a cohort of 239,118 individuals with diagnosed diabetes, the incidence of any diabetic complication was similar in females with schizophrenia and diabetes compared to females with diabetes only; IRR = 0.93 (95%CI: 0.84-1.02), and significantly lower in males; IRR = 0.85 (95%CI: 0.78-0.92). The all-cause mortality for individuals with a diagnosis of a diabetic complication was higher in individuals with schizophrenia and diabetes than in those with diabetes only; MRR = 1.92 (95%CI: 1.65-2.23) for females and MRR = 1.69 (95%CI: 1.49-1.92) for males. Among those without diabetic complications, schizophrenia was also associated with a higher mortality.
CONCLUSIONS
Individuals with schizophrenia and diabetes had similar or lower rates of diabetic complications, compared to those with diabetes only. Among those with diabetic complications, schizophrenia was associated with higher mortality. Similar, among those without diabetic complications, schizophrenia was also associated with higher mortality. Hence, diabetic complications do not seem to explain the excess mortality seen in individuals with schizophrenia.
Identifiants
pubmed: 32029352
pii: S0920-9964(20)30040-2
doi: 10.1016/j.schres.2020.01.024
pii:
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
99-106Informations de copyright
Copyright © 2020 Elsevier B.V. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of competing interest None.