Association between first-line antidepressant use and risk of dementia in older adults: a retrospective cohort study

Abstract Background Prior studies suggested that antidepressant use is associated with an increased risk of dementia compared to no use, which is subject to confounding by indication. We aimed to compare the dementia risk among older adults with depression receiving first-line antidepressants (i.e.,...

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Main Authors: Grace Hsin-Min Wang, Wei-Han Chen, Shao-Hsuan Chang, Tianxiao Zhang, Hui Shao, Jingchuan Guo, Wei-Hsuan Lo-Ciganic
Format: Article
Language:English
Published: BMC 2023-12-01
Series:BMC Geriatrics
Subjects:
Online Access:https://doi.org/10.1186/s12877-023-04475-z
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author Grace Hsin-Min Wang
Wei-Han Chen
Shao-Hsuan Chang
Tianxiao Zhang
Hui Shao
Jingchuan Guo
Wei-Hsuan Lo-Ciganic
author_facet Grace Hsin-Min Wang
Wei-Han Chen
Shao-Hsuan Chang
Tianxiao Zhang
Hui Shao
Jingchuan Guo
Wei-Hsuan Lo-Ciganic
author_sort Grace Hsin-Min Wang
collection DOAJ
description Abstract Background Prior studies suggested that antidepressant use is associated with an increased risk of dementia compared to no use, which is subject to confounding by indication. We aimed to compare the dementia risk among older adults with depression receiving first-line antidepressants (i.e., SSRI/SNRI) versus psychotherapy, which is also considered the first-line therapy for depression. Methods This retrospective cohort study was conducted using the US Medical Expenditure Panel Survey from 2010 to 2019. We included adults aged ≥ 50 years diagnosed with depression who initiated SSRI/SNRI or psychotherapy. We excluded patients with a dementia diagnosis before the first record of SSRI/SNRI use or psychotherapy. The exposure was the patient’s receipt of SSRI/SNRI (identified from self-report questionnaires) or psychotherapy (identified from the Outpatient Visits or Office-Based Medical Provider Visits files). The outcome was a new diagnosis of dementia within 2 years (i.e., survey panel period) identified using ICD-9/ICD-10 codes from the Medical Conditions file. Using a multivariable logistic regression model, we reported adjusted odds ratios (aORs) with 95% confidence intervals (CIs). We also conducted subgroup analyses by patient sex, age group, race/ethnicity, severity of depression, combined use of other non-SSRI/SNRI antidepressants, and presence of underlying cognitive impairment. Results Among 2,710 eligible patients (mean age = 61 ± 8, female = 69%, White = 84%), 89% used SSRIs/SNRIs, and 11% received psychotherapy. The SSRI/SNRI users had a higher crude incidence of dementia than the psychotherapy group (16.4% vs. 11.8%), with an aOR of 1.36 (95% CI = 1.06–1.74). Subgroup analyses yielded similar findings as the main analyses, except no significant association for patients who were aged < 65 years (1.23, 95% CI = 0.93–1.62), male (1.34, 95% CI = 0.95–1.90), Black (0.76, 95% CI = 0.48–1.19), had a higher PHQ-2 (1.39, 95% CI = 0.90–2.15), and had underlying cognitive impairment (1.06, 95% CI = 0.80–1.42). Conclusions Our findings suggested that older adults with depression receiving SSRIs/SNRIs were associated with an increased dementia risk compared to those receiving psychotherapy.
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spelling doaj.art-579670ec101b4fc4b90b50d44ea904622023-12-10T12:31:05ZengBMCBMC Geriatrics1471-23182023-12-0123111010.1186/s12877-023-04475-zAssociation between first-line antidepressant use and risk of dementia in older adults: a retrospective cohort studyGrace Hsin-Min Wang0Wei-Han Chen1Shao-Hsuan Chang2Tianxiao Zhang3Hui Shao4Jingchuan Guo5Wei-Hsuan Lo-Ciganic6Department of Pharmaceutical Outcomes & Policy, College of Pharmacy, University of FloridaDepartment of Pharmaceutical Outcomes & Policy, College of Pharmacy, University of FloridaDepartment of Pharmaceutical Outcomes & Policy, College of Pharmacy, University of FloridaDepartment of Pharmaceutical Outcomes & Policy, College of Pharmacy, University of FloridaHubert Department of Global Health, Rollin School of Public Health, Emory UniversityDepartment of Pharmaceutical Outcomes & Policy, College of Pharmacy, University of FloridaCenter for Pharmaceutical Policy and Prescribing, Health Policy Institute, University of PittsburghAbstract Background Prior studies suggested that antidepressant use is associated with an increased risk of dementia compared to no use, which is subject to confounding by indication. We aimed to compare the dementia risk among older adults with depression receiving first-line antidepressants (i.e., SSRI/SNRI) versus psychotherapy, which is also considered the first-line therapy for depression. Methods This retrospective cohort study was conducted using the US Medical Expenditure Panel Survey from 2010 to 2019. We included adults aged ≥ 50 years diagnosed with depression who initiated SSRI/SNRI or psychotherapy. We excluded patients with a dementia diagnosis before the first record of SSRI/SNRI use or psychotherapy. The exposure was the patient’s receipt of SSRI/SNRI (identified from self-report questionnaires) or psychotherapy (identified from the Outpatient Visits or Office-Based Medical Provider Visits files). The outcome was a new diagnosis of dementia within 2 years (i.e., survey panel period) identified using ICD-9/ICD-10 codes from the Medical Conditions file. Using a multivariable logistic regression model, we reported adjusted odds ratios (aORs) with 95% confidence intervals (CIs). We also conducted subgroup analyses by patient sex, age group, race/ethnicity, severity of depression, combined use of other non-SSRI/SNRI antidepressants, and presence of underlying cognitive impairment. Results Among 2,710 eligible patients (mean age = 61 ± 8, female = 69%, White = 84%), 89% used SSRIs/SNRIs, and 11% received psychotherapy. The SSRI/SNRI users had a higher crude incidence of dementia than the psychotherapy group (16.4% vs. 11.8%), with an aOR of 1.36 (95% CI = 1.06–1.74). Subgroup analyses yielded similar findings as the main analyses, except no significant association for patients who were aged < 65 years (1.23, 95% CI = 0.93–1.62), male (1.34, 95% CI = 0.95–1.90), Black (0.76, 95% CI = 0.48–1.19), had a higher PHQ-2 (1.39, 95% CI = 0.90–2.15), and had underlying cognitive impairment (1.06, 95% CI = 0.80–1.42). Conclusions Our findings suggested that older adults with depression receiving SSRIs/SNRIs were associated with an increased dementia risk compared to those receiving psychotherapy.https://doi.org/10.1186/s12877-023-04475-zAntidepressantsPsychotherapyDepressionDementiaOlder adults
spellingShingle Grace Hsin-Min Wang
Wei-Han Chen
Shao-Hsuan Chang
Tianxiao Zhang
Hui Shao
Jingchuan Guo
Wei-Hsuan Lo-Ciganic
Association between first-line antidepressant use and risk of dementia in older adults: a retrospective cohort study
BMC Geriatrics
Antidepressants
Psychotherapy
Depression
Dementia
Older adults
title Association between first-line antidepressant use and risk of dementia in older adults: a retrospective cohort study
title_full Association between first-line antidepressant use and risk of dementia in older adults: a retrospective cohort study
title_fullStr Association between first-line antidepressant use and risk of dementia in older adults: a retrospective cohort study
title_full_unstemmed Association between first-line antidepressant use and risk of dementia in older adults: a retrospective cohort study
title_short Association between first-line antidepressant use and risk of dementia in older adults: a retrospective cohort study
title_sort association between first line antidepressant use and risk of dementia in older adults a retrospective cohort study
topic Antidepressants
Psychotherapy
Depression
Dementia
Older adults
url https://doi.org/10.1186/s12877-023-04475-z
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