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Atopic dermatitis, systemic inflammation and subsequent dementia risk

Vingeliene, Snieguole ; Hiyoshi, Ayako ; Carlberg, M. ; Garcia-Argibay, Miguel ; Lentjes, M. ; Fall, Katja ; von Kobyletzki, Laura LU and Montgomery, Scott (2023) In JEADV Clinical Practice 2(4). p.839-848
Abstract

Background: Atopic dermatitis is a chronic inflammatory skin disease and inflammation has been implicated in development of other chronic diseases, but few studies have examined the relationship with dementia. Objectives: This study examines associations of atopic dermatitis (AD) and systemic inflammation in adolescence measured using erythrocyte sedimentation rate (ESR), as well as AD diagnosed in adulthood, with dementia risk. Methods: We used three Swedish register-based cohorts. Cohort I (N = 795,680) comprised men, born in 1951–1968, who participated in the military conscription examinations with physician-assessed AD and ESR; Cohort II (N = 1,757,600) included men and women, born in 1951–1968; and Cohort III (N = 3,988,783)... (More)

Background: Atopic dermatitis is a chronic inflammatory skin disease and inflammation has been implicated in development of other chronic diseases, but few studies have examined the relationship with dementia. Objectives: This study examines associations of atopic dermatitis (AD) and systemic inflammation in adolescence measured using erythrocyte sedimentation rate (ESR), as well as AD diagnosed in adulthood, with dementia risk. Methods: We used three Swedish register-based cohorts. Cohort I (N = 795,680) comprised men, born in 1951–1968, who participated in the military conscription examinations with physician-assessed AD and ESR; Cohort II (N = 1,757,600) included men and women, born in 1951–1968; and Cohort III (N = 3,988,783) included all individuals in Sweden, born in 1930–1968. We used Cox regression, estimating hazard ratios (HR), with the follow-up from 50 years of age to dementia diagnosis, date of emigration, death, or 31 December 2018, whichever occurred first. Further, we used a sibling comparison design to adjust for unmeasured confounders shared among siblings. Results: Cohort I: 1466 dementia events were accrued during follow-up of 7.8 years, with a crude rate of 21.6 [95% confidence interval (CI): 20.6, 22.8] per 100,000 person-years. Cohort II: 3549 dementia events were accrued during follow-up of 7.4 years, with a crude rate of 23.7 (95% CI: 22.9, 24.5) per 100,000 person-years. Cohort III: 120,303 dementia events were accrued during follow-up of 23.7 years, with a crude rate of 180.3 (95% CI: 179.3, 181.3) per 100,000 person-years. In multivariable analysis using Cohort I, there was no association between AD and dementia [HR 0.68 (95% CI 0.32, 1.43)], nor with moderate [HR 0.71 (95% CI: 0.46, 1.10)] or high [HR 1.23 (95% CI: 0.87, 1.75)] ESR. AD was not associated with dementia risk in Cohort II [HR 1.28 (0.97, 1.71)] or Cohort III [HR 1.01 (0.92, 1.11)]. Conclusions: AD was not associated with dementia risk, neither was systemic inflammation measured by ESR in adolescence.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
atopic dermatitis, dementia, erythrocyte sedimentation rate
in
JEADV Clinical Practice
volume
2
issue
4
pages
10 pages
publisher
Wiley
external identifiers
  • scopus:85181467049
ISSN
2768-6566
DOI
10.1002/jvc2.249
language
English
LU publication?
yes
id
b8d2d581-5319-400d-8ef5-b7df24581c74
date added to LUP
2024-02-16 11:51:52
date last changed
2024-02-16 11:54:09
@article{b8d2d581-5319-400d-8ef5-b7df24581c74,
  abstract     = {{<p>Background: Atopic dermatitis is a chronic inflammatory skin disease and inflammation has been implicated in development of other chronic diseases, but few studies have examined the relationship with dementia. Objectives: This study examines associations of atopic dermatitis (AD) and systemic inflammation in adolescence measured using erythrocyte sedimentation rate (ESR), as well as AD diagnosed in adulthood, with dementia risk. Methods: We used three Swedish register-based cohorts. Cohort I (N = 795,680) comprised men, born in 1951–1968, who participated in the military conscription examinations with physician-assessed AD and ESR; Cohort II (N = 1,757,600) included men and women, born in 1951–1968; and Cohort III (N = 3,988,783) included all individuals in Sweden, born in 1930–1968. We used Cox regression, estimating hazard ratios (HR), with the follow-up from 50 years of age to dementia diagnosis, date of emigration, death, or 31 December 2018, whichever occurred first. Further, we used a sibling comparison design to adjust for unmeasured confounders shared among siblings. Results: Cohort I: 1466 dementia events were accrued during follow-up of 7.8 years, with a crude rate of 21.6 [95% confidence interval (CI): 20.6, 22.8] per 100,000 person-years. Cohort II: 3549 dementia events were accrued during follow-up of 7.4 years, with a crude rate of 23.7 (95% CI: 22.9, 24.5) per 100,000 person-years. Cohort III: 120,303 dementia events were accrued during follow-up of 23.7 years, with a crude rate of 180.3 (95% CI: 179.3, 181.3) per 100,000 person-years. In multivariable analysis using Cohort I, there was no association between AD and dementia [HR 0.68 (95% CI 0.32, 1.43)], nor with moderate [HR 0.71 (95% CI: 0.46, 1.10)] or high [HR 1.23 (95% CI: 0.87, 1.75)] ESR. AD was not associated with dementia risk in Cohort II [HR 1.28 (0.97, 1.71)] or Cohort III [HR 1.01 (0.92, 1.11)]. Conclusions: AD was not associated with dementia risk, neither was systemic inflammation measured by ESR in adolescence.</p>}},
  author       = {{Vingeliene, Snieguole and Hiyoshi, Ayako and Carlberg, M. and Garcia-Argibay, Miguel and Lentjes, M. and Fall, Katja and von Kobyletzki, Laura and Montgomery, Scott}},
  issn         = {{2768-6566}},
  keywords     = {{atopic dermatitis; dementia; erythrocyte sedimentation rate}},
  language     = {{eng}},
  number       = {{4}},
  pages        = {{839--848}},
  publisher    = {{Wiley}},
  series       = {{JEADV Clinical Practice}},
  title        = {{Atopic dermatitis, systemic inflammation and subsequent dementia risk}},
  url          = {{http://dx.doi.org/10.1002/jvc2.249}},
  doi          = {{10.1002/jvc2.249}},
  volume       = {{2}},
  year         = {{2023}},
}