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Dementia in immigrant groups : A cohort study of all adults 45 years of age and older in Sweden

Wändell, Per LU ; Carlsson, Axel C.; Li, Xinjun LU ; Gasevic, Danijela; Sundquist, Jan LU and Sundquist, Kristina LU (2019) In Archives of Gerontology and Geriatrics 82. p.251-258
Abstract

Objective: To study the association between country of birth and incident dementia in several immigrant groups in Sweden. Methods: The study population included all adults (n = 3,286,624) aged 45 years and older in Sweden. Dementia was defined as having at least one registered diagnosis of dementia in the National Patient Register. The incidence of dementia in different immigrant groups, using Swedish-born as referents, was assessed by Cox regression, expressed in hazard ratios (HRs) and 95% confidence intervals (CI). All models were stratified by sex and adjusted for age, geographical residence in Sweden, educational level, marital status, and neighbourhood socioeconomic status. Results: A total of 136,713 individuals had a registered... (More)

Objective: To study the association between country of birth and incident dementia in several immigrant groups in Sweden. Methods: The study population included all adults (n = 3,286,624) aged 45 years and older in Sweden. Dementia was defined as having at least one registered diagnosis of dementia in the National Patient Register. The incidence of dementia in different immigrant groups, using Swedish-born as referents, was assessed by Cox regression, expressed in hazard ratios (HRs) and 95% confidence intervals (CI). All models were stratified by sex and adjusted for age, geographical residence in Sweden, educational level, marital status, and neighbourhood socioeconomic status. Results: A total of 136,713 individuals had a registered dementia event, i.e. 4.2%; 3.6% among men and 4.9% among women. After adjusting for confounders, in general, there was a lower incidence of dementia among both male immigrants (HR 0.85, 0.83–0.88) and female immigrants (HR 0.93, 0.91–0.95) compared to their Swedish-born counterparts. Among immigrant groups, a higher incidence (HR, 95%CI) of dementia was observed among men from Finland (1.14, 1.08–1.20), Bosnia (1.61, 1.18–2.20), Estonia (1.25, 1.10–1.43) and Russia (1.37, 1.12–1.69), and women from Finland (1.20 1.15–1.24) and Norway (1.14, 1.07–1.22). Conclusions: Risk of dementia was lower in immigrants in general compared to the Swedish-born population; however there were substantial differences among immigrant groups in risk of dementia. Developing dementia in a new country with a different language could cause problems for both patients and the health care staff.

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author
organization
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type
Contribution to journal
publication status
published
subject
keywords
Dementia, First generation immigrants, Gender, Neighbourhood, Socioeconomic status
in
Archives of Gerontology and Geriatrics
volume
82
pages
8 pages
publisher
Elsevier
external identifiers
  • scopus:85062808916
ISSN
0167-4943
DOI
10.1016/j.archger.2019.03.003
language
English
LU publication?
yes
id
1c294973-1398-4279-a025-817867bb5f21
date added to LUP
2019-03-19 10:55:26
date last changed
2019-04-23 04:46:53
@article{1c294973-1398-4279-a025-817867bb5f21,
  abstract     = {<p>Objective: To study the association between country of birth and incident dementia in several immigrant groups in Sweden. Methods: The study population included all adults (n = 3,286,624) aged 45 years and older in Sweden. Dementia was defined as having at least one registered diagnosis of dementia in the National Patient Register. The incidence of dementia in different immigrant groups, using Swedish-born as referents, was assessed by Cox regression, expressed in hazard ratios (HRs) and 95% confidence intervals (CI). All models were stratified by sex and adjusted for age, geographical residence in Sweden, educational level, marital status, and neighbourhood socioeconomic status. Results: A total of 136,713 individuals had a registered dementia event, i.e. 4.2%; 3.6% among men and 4.9% among women. After adjusting for confounders, in general, there was a lower incidence of dementia among both male immigrants (HR 0.85, 0.83–0.88) and female immigrants (HR 0.93, 0.91–0.95) compared to their Swedish-born counterparts. Among immigrant groups, a higher incidence (HR, 95%CI) of dementia was observed among men from Finland (1.14, 1.08–1.20), Bosnia (1.61, 1.18–2.20), Estonia (1.25, 1.10–1.43) and Russia (1.37, 1.12–1.69), and women from Finland (1.20 1.15–1.24) and Norway (1.14, 1.07–1.22). Conclusions: Risk of dementia was lower in immigrants in general compared to the Swedish-born population; however there were substantial differences among immigrant groups in risk of dementia. Developing dementia in a new country with a different language could cause problems for both patients and the health care staff.</p>},
  author       = {Wändell, Per and Carlsson, Axel C. and Li, Xinjun and Gasevic, Danijela and Sundquist, Jan and Sundquist, Kristina},
  issn         = {0167-4943},
  keyword      = {Dementia,First generation immigrants,Gender,Neighbourhood,Socioeconomic status},
  language     = {eng},
  pages        = {251--258},
  publisher    = {Elsevier},
  series       = {Archives of Gerontology and Geriatrics},
  title        = {Dementia in immigrant groups : A cohort study of all adults 45 years of age and older in Sweden},
  url          = {http://dx.doi.org/10.1016/j.archger.2019.03.003},
  volume       = {82},
  year         = {2019},
}