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AHRQ Research Studies
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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
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1 to 3 of 3 Research Studies DisplayedEarla JR, Li J, Hutton GJ
Comparative adherence trajectories of oral disease-modifying agents in multiple sclerosis.
This study’s objective was to compare the adherence trajectories of fingolimod (FIN), teriflunomide (TER), and dimethyl fumarate (DMF) users with multiple sclerosis (MS) as there is limited evidence regarding the comparative adherence patterns of different oral disease-modifying agents (DMAs). The authors used data from the IBM MarketScan Commercial Claims Database from 2015 to 2019. The study cohort included adults (≥18 years) with MS (International Classification of Diseases [ICD]-9/10-Clinical Modification [CM]:340/G35) diagnosis and ≥1 DMA prescription. 1913 patients with MS who were initiated with FIN (24.2%, n = 462), TER (24.0%, n = 458), and DMF (51.9%, n = 993) during 2016-2018 were included. The adherence rate among FIN, TER, and DMF users was found to be 70.8% (n = 327), 59.6% (n = 273), and 61.0% (n = 606), respectively. The Group-Based Trajectory Modeling (GBTM) grouped patients into three adherence trajectories: Complete Adherers-59.1%, Slow Decliners-22.6%, and Rapid Discontinuers-18.3%. DMF and TER users had higher odds to be rapid discontinuers than FIN users. In addition, TER users were more likely to be slow decliners compared with FIN users.
AHRQ-funded; HS028502.
Citation: Earla JR, Li J, Hutton GJ .
Comparative adherence trajectories of oral disease-modifying agents in multiple sclerosis.
Pharmacotherapy 2023 Jun; 43(6):473-84. doi: 10.1002/phar.2810..
Keywords: Medication, Patient Adherence/Compliance, Neurological Disorders
Reynolds EL, JF JF, Banerjee M
Association of out-of-pocket costs on adherence to common neurologic medications.
The objective of this training was to determine the association between out-of-pocket costs and medication adherence in 3 common neurologic diseases. The investigators concluded that higher out-of-pocket costs were associated with lower medication adherence in 3 common neurologic conditions. The investigators also observed racial/ethnic disparities and recommended that minority populations receive additional focus in future intervention efforts to improve adherence.
AHRQ-funded; HS017690; HS022258.
Citation: Reynolds EL, JF JF, Banerjee M .
Association of out-of-pocket costs on adherence to common neurologic medications.
Neurology 2020 Mar 31;94(13):e1415-e26. doi: 10.1212/wnl.0000000000009039..
Keywords: Medication, Healthcare Costs, Patient Adherence/Compliance, Neurological Disorders, Dementia
Marcum ZA, Walker RL, Jones BL
Patterns of antihypertensive and statin adherence prior to dementia: findings from the adult changes in thought study.
Using the hypothesis that changes in medication adherence might represent an early sign of cognitive impairment, this study examined antihypertensive and statin adherence trajectories in community-dwelling older adults to compare which went on to develop dementia and which did not. Data from Adult Changes in Thought (ACT), a population-based cohort study, was analyzed; 4368 participants aged 65 years or older who had at least one follow-up visit were selected, included on the basis of whether they were prevalent users of either a statin or antihypertensive medication on the first day of follow up. Research-quality dementia diagnoses were used to identify cases. Non-dementia control visits were matched by age, sex, and study cohort that occurred at similar follow-up time as the selected case dementia onset. The authors conclude that the patterns of medication adherence that emerged may be useful to identify people with higher likelihood of developing dementia.
AHRQ-funded; HS022982.
Citation: Marcum ZA, Walker RL, Jones BL .
Patterns of antihypertensive and statin adherence prior to dementia: findings from the adult changes in thought study.
BMC Geriatr 2019 Feb 14;19(1):41. doi: 10.1186/s12877-019-1058-6..
Keywords: Dementia, Elderly, Medication, Neurological Disorders, Patient Adherence/Compliance