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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 2 of 2 Research Studies DisplayedWei YJ, Chen C, Lewis MO
Trajectories of prescription opioid dose and risk of opioid-related adverse events among older Medicare beneficiaries in the United States: a nested case-control study.
This study used a sample of older patients who are Medicare beneficiaries who were newly prescribed opioids to determine rates of 4 prescription opioid dose trajectories and the risk of opioid-related adverse events (ORAEs). A 5% random sample of Medicare beneficiaries from 2011 to 2018 was used to conduct a nested case-control study of patients age 65 and older who were newly diagnosed with chronic noncancer pain (CNCP). Among the cases and controls, 2,192 (70.6%) were women and mean age was 77.1 years. Four prescribed opioid trajectories before the incident ORAE diagnosis or matched date emerged: gradual dose discontinuation (from ≤3 to 0 daily morphine milligram equivalent (MME), 1,456 [23.5%]), gradual dose increase (from 0 to >3 daily MME, 1,878 [30.3%]), consistent low dose (between 3 and 5 daily MME, 1,510 [24.3%]), and consistent moderate dose (>20 daily MME, 1,362 [22.0%]). Less than 5% were prescribed a mean daily dose of ≥90 daily MME during 6 months before diagnosis or matched date. Patients with gradual dose discontinuation versus those with a consistent low or moderate dose, and increase dose were more likely to be 65 to 74 years, Midwest US residents, and receiving no low-income subsidy. Those with gradual dose increase and consistent moderate dose had a higher risk of ORAE, after adjustment for covariates.
AHRQ-funded; HS027230.
Citation: Wei YJ, Chen C, Lewis MO .
Trajectories of prescription opioid dose and risk of opioid-related adverse events among older Medicare beneficiaries in the United States: a nested case-control study.
PLoS Med 2022 Mar;19(3):e1003947. doi: 10.1371/journal.pmed.1003947..
Keywords: Elderly, Opioids, Medication, Adverse Drug Events (ADE), Adverse Events, Risk, Chronic Conditions, Pain, Substance Abuse, Behavioral Health, Medication: Safety, Patient Safety
Fung VC, Overhage LN, Sylvia LG
Complex polypharmacy in bipolar disorder: side effect burden, adherence, and response predictors.
Investigators assessed the associations between complex polypharmacy (CP), adherence, and side effect burden, and patient traits associated with clinical improvement in relationship to CP in patients with bipolar disorder. They found that bipolar disorder patients with CP were less likely to adhere to therapy, and those with worse adherence to CP were less likely to clinically respond. They recommended that clinicians assess medication adherence prior to adding another agent to medication regimens.
AHRQ-funded; HS019371.
Citation: Fung VC, Overhage LN, Sylvia LG .
Complex polypharmacy in bipolar disorder: side effect burden, adherence, and response predictors.
J Affect Disord 2019 Oct 1;257:17-22. doi: 10.1016/j.jad.2019.06.050..
Keywords: Adverse Drug Events (ADE), Adverse Events, Medication, Behavioral Health, Chronic Conditions, Patient Adherence/Compliance