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Association between amphetamine-related disorders and dementia-a nationwide cohort study in Taiwan.


ABSTRACT:

Objective

We have conducted a study to clarify the association between amphetamine-related disorders (ARD) and the risk of developing dementia.

Methods

This study used a retrospective cohort design by using Taiwan's National Health Research Institute Database. A random sample of 68,300 subjects between January 1, 2000, and December 31, 2015, was obtained, comprising of 17,075 patients with ARD, and 51,225 controls without ARD (1:3), matched for gender and age group. After adjusting for covariates, a Fine and Gray's survival analysis (competing with mortality) was used to compare the risk of dementia during a 15-year follow-up period.

Results

In the present study, 1,751 of 17,075 patients with ARD and 2,147 of 51,225 in the control group without ARD (883.10 vs 342.83 per 100,000 person-years) developed dementia. ARD cohort was more likely to develop dementia (hazard ratio = 4.936 [95% CI: 4.609-5.285, P < 0.001). After adjusting for gender, age groups, education, monthly insured premiums, urbanization level, geographic region, comorbidities, the hazard ratio for ARD patients was 5.034 (95% CI: 4.701-5.391, P < 0.001). ARD has been associated with overall dementia, Alzheimer dementia, vascular dementia, and other dementia. Both the amphetamine use disorder and amphetamine-induced psychotic disorders were associated with the risk of overall dementia, Alzheimer dementia, vascular dementia, and other dementia.

Interpretation

This study shows that patients with ARD, both the amphetamine use disorder and the amphetamine-induced psychotic disorder, may have a nearly fivefold risk of developing dementia, including Alzheimer dementia and other types of dementia.

SUBMITTER: Tzeng NS 

PROVIDER: S-EPMC7448166 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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Publications

Association between amphetamine-related disorders and dementia-a nationwide cohort study in Taiwan.

Tzeng Nian-Sheng NS   Chien Wu-Chien WC   Chung Chi-Hsiang CH   Chang Hsin-An HA   Kao Yu-Chen YC   Liu Yia-Ping YP  

Annals of clinical and translational neurology 20200630 8


<h4>Objective</h4>We have conducted a study to clarify the association between amphetamine-related disorders (ARD) and the risk of developing dementia.<h4>Methods</h4>This study used a retrospective cohort design by using Taiwan's National Health Research Institute Database. A random sample of 68,300 subjects between January 1, 2000, and December 31, 2015, was obtained, comprising of 17,075 patients with ARD, and 51,225 controls without ARD (1:3), matched for gender and age group. After adjustin  ...[more]

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