Re-examination of the risk of dementia after dengue virus infection: A population-based cohort study.

Dengue infection can affect the central nervous system and cause various neurological complications. Previous studies also suggest dengue was associated with a significantly increased long-term risk of dementia. A population-based cohort study was conducted using national health databases in Taiwan...

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Main Authors: Yu-Wen Chien, Hsin-I Shih, Yu-Ping Wang, Chia-Yu Chi
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2023-12-01
Series:PLoS Neglected Tropical Diseases
Online Access:https://journals.plos.org/plosntds/article/file?id=10.1371/journal.pntd.0011788&type=printable
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author Yu-Wen Chien
Hsin-I Shih
Yu-Ping Wang
Chia-Yu Chi
author_facet Yu-Wen Chien
Hsin-I Shih
Yu-Ping Wang
Chia-Yu Chi
author_sort Yu-Wen Chien
collection DOAJ
description Dengue infection can affect the central nervous system and cause various neurological complications. Previous studies also suggest dengue was associated with a significantly increased long-term risk of dementia. A population-based cohort study was conducted using national health databases in Taiwan and included 37,928 laboratory-confirmed dengue patients aged ≥ 45 years between 2002 and 2015, along with 151,712 matched nondengue individuals. Subdistribution hazard regression models showed a slightly increased risk of Alzheimer's disease, and unspecified dementia, non-vascular dementia, and overall dementia in dengue patients than the nondengue group, adjusted for age, sex, area of residence, urbanization level, income, comorbidities, and all-cause clinical visits within one year before the index date. After considering multiple comparisons using Bonferroni correction, only overall dementia and non-vascular dementia remained statistically significant (adjusted SHR 1.13, 95% CI 1.05-1.21, p = 0.0009; E-value 1.51, 95% CI 1.28-NA). Sensitivity analyses in which dementia cases occurring in the first three or five years after the index dates were excluded revealed no association between dengue and dementia. In conclusion, this study found dengue patients had a slightly increased risk of non-vascular dementia and total dementia than those without dengue. However, the small corresponding E-values and sensitivity analyses suggest the association between dengue and dementia may not be causal.
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spelling doaj.art-55fd547fc3624bafb5470baeee1f6d9d2023-12-24T05:33:59ZengPublic Library of Science (PLoS)PLoS Neglected Tropical Diseases1935-27271935-27352023-12-011712e001178810.1371/journal.pntd.0011788Re-examination of the risk of dementia after dengue virus infection: A population-based cohort study.Yu-Wen ChienHsin-I ShihYu-Ping WangChia-Yu ChiDengue infection can affect the central nervous system and cause various neurological complications. Previous studies also suggest dengue was associated with a significantly increased long-term risk of dementia. A population-based cohort study was conducted using national health databases in Taiwan and included 37,928 laboratory-confirmed dengue patients aged ≥ 45 years between 2002 and 2015, along with 151,712 matched nondengue individuals. Subdistribution hazard regression models showed a slightly increased risk of Alzheimer's disease, and unspecified dementia, non-vascular dementia, and overall dementia in dengue patients than the nondengue group, adjusted for age, sex, area of residence, urbanization level, income, comorbidities, and all-cause clinical visits within one year before the index date. After considering multiple comparisons using Bonferroni correction, only overall dementia and non-vascular dementia remained statistically significant (adjusted SHR 1.13, 95% CI 1.05-1.21, p = 0.0009; E-value 1.51, 95% CI 1.28-NA). Sensitivity analyses in which dementia cases occurring in the first three or five years after the index dates were excluded revealed no association between dengue and dementia. In conclusion, this study found dengue patients had a slightly increased risk of non-vascular dementia and total dementia than those without dengue. However, the small corresponding E-values and sensitivity analyses suggest the association between dengue and dementia may not be causal.https://journals.plos.org/plosntds/article/file?id=10.1371/journal.pntd.0011788&type=printable
spellingShingle Yu-Wen Chien
Hsin-I Shih
Yu-Ping Wang
Chia-Yu Chi
Re-examination of the risk of dementia after dengue virus infection: A population-based cohort study.
PLoS Neglected Tropical Diseases
title Re-examination of the risk of dementia after dengue virus infection: A population-based cohort study.
title_full Re-examination of the risk of dementia after dengue virus infection: A population-based cohort study.
title_fullStr Re-examination of the risk of dementia after dengue virus infection: A population-based cohort study.
title_full_unstemmed Re-examination of the risk of dementia after dengue virus infection: A population-based cohort study.
title_short Re-examination of the risk of dementia after dengue virus infection: A population-based cohort study.
title_sort re examination of the risk of dementia after dengue virus infection a population based cohort study
url https://journals.plos.org/plosntds/article/file?id=10.1371/journal.pntd.0011788&type=printable
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AT yupingwang reexaminationoftheriskofdementiaafterdenguevirusinfectionapopulationbasedcohortstudy
AT chiayuchi reexaminationoftheriskofdementiaafterdenguevirusinfectionapopulationbasedcohortstudy