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Updated: Jan 1, 2026

An Affordable HIV-1 Drug Resistance Monitoring Method for Resource Limited Settings
Published on: March 30, 2014
Clinical characteristics and treatment patterns among US patients with HIV
Julie L Priest1, Tanya Burton, Cori Blauer-Peterson
1ViiV Healthcare, 5 Moore Dr, Durham, NC 27709.
Insights
People with HIV-1 and Medicare insurance face higher pill burdens and more comorbidities. Treatment selection for HIV-1 should consider individual patient complexities like comorbidities and pill burden.
Area of Science:
- Infectious Diseases
- Public Health
- Health Services Research
Background:
- Antiretroviral therapy (ART) has transformed HIV-1 management, improving life expectancy and quality of life.
- Understanding treatment patterns and clinical characteristics in diverse patient populations is crucial for optimizing care.
- Health insurance type can influence access to and patterns of care for chronic conditions like HIV-1.
Purpose of the Study:
- To describe the clinical characteristics and treatment patterns of patients with HIV-1.
- To compare these characteristics between patients with commercial insurance and those with Medicare in the United States.
- To identify factors influencing treatment complexity, such as comorbidities and pill burden.
Main Methods:
- Retrospective cohort study utilizing administrative claims data from 2007 to 2017.
- Included adult commercial and Medicare health plan enrollees with evidence of HIV-1 and ART.
- Identified ART regimens using a claims-based algorithm and stratified results by treatment status and insurance type.
Main Results:
- A cohort of 18,699 patients with HIV-1 was analyzed; 82% had commercial insurance.
- Patients with Medicare insurance or multiple ART regimens experienced a higher daily pill burden.
- Common comorbidities included hyperlipidemia, cardiovascular disease, hypertension, depression, and anxiety.
Conclusions:
- Patients with HIV-1 enrolled in Medicare exhibit significant comorbidities and a high total pill burden.
- Effective HIV-1 management requires consideration of individual complexities, including comorbidities and pill burden, when selecting ART regimens.
- Despite advancements in ART, personalized treatment approaches are essential for improving outcomes in people living with HIV.
Objectives:
Describe the clinical characteristics and treatment patterns of patients with HIV-1 who have commercial or Medicare health insurance in the United States.
Study Design:
Retrospective cohort study.
Methods:
Administrative claims for adult commercial and Medicare health plan enrollees with evidence of HIV-1 and antiretroviral therapy (ART) between January 1, 2007, and March 31, 2017, were assessed. Current and previous complete ART regimens were identified using a claims-based algorithm. Results were stratified by treatment status and insurance type.
Results:
Of 18,699 eligible patients, 5027 (27%) had no previous ART regimens; 15,275 (82%) had commercial insurance. Mean age was 47.5 years. Common comorbidities included hyperlipidemia, cardiovascular disease, hypertension, depression, and anxiety. The mean number of ART regimens was 1.43, with 31% of patients having 2 or more regimens. Mean (SD) daily pill burden was higher in patients with more than 1 ART regimen over time (5.7 [6.0] pills) or with Medicare insurance (9.2 [8.0] pills) than in patients with no previous ART (1.9 [4.4] pills) or with commercial insurance (3.7 [4.7] pills). Overall, 60% of patients achieved 90% or greater adherence to their ART regimen and 16% had a prescription filled for any contraindicated medication to an ART during their regimen.
Conclusions:
This descriptive study demonstrated that people living with HIV enrolled in Medicare have a significant amount of comorbidities and total pill burden. Although advancements in ART have significantly improved life expectancy and quality of life for people living with HIV, it is important to take into account individual complexities such as comorbidities and pill burden when selecting ART regimens.
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