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Published on: October 31, 2010
Relation between literacy and HIV treatment knowledge among patients on HAART regimens
M S Wolf1, T C Davis, A Arozullah
1Center for Healthcare Studies, Feinberg School of Medicine at Northwestern University, Chicago, IL 60611, USA. mswolf@northwestern.edu
Insights
Patients with limited literacy skills struggle to understand HIV treatment, including CD4 counts, viral load, and medication identification. This highlights a critical need for improved clinician communication strategies to ensure effective HIV management.
Area of Science:
- Medical Science
- Public Health
- Health Communication
Background:
- Effective HIV management hinges on patients' comprehension and adherence to treatment regimens.
- Patient understanding of complex medical information, such as CD4 counts and viral loads, is crucial for successful HIV care.
Purpose of the Study:
- To investigate the correlation between health literacy levels and patients' understanding of critical HIV treatment components.
- To assess how literacy impacts knowledge of CD4 count, viral load, and accurate identification of prescribed HIV medications.
Main Methods:
- A study involving 204 HIV patients in Shreveport, Louisiana, and Chicago, Illinois.
- Evaluation of patient literacy, knowledge of CD4 count and viral load, and correct identification of HIV medications.
- Multivariate analysis to identify independent predictors of poor understanding and interactions between literacy and medication complexity.
Main Results:
- One-third of the patient cohort demonstrated limited literacy skills.
- Limited literacy was significantly associated with poorer understanding of CD4 count (p < 0.001) and viral load (p < 0.001).
- A significant interaction between literacy and the number of HIV medications was observed for medication identification, with lower literate patients on complex regimens performing poorly.
Conclusions:
- Limited health literacy presents a substantial barrier to essential knowledge for patients undergoing HIV treatment.
- Findings suggest a need for enhanced clinician training to improve communication and support for patients with limited literacy.
- Tailored communication strategies are vital to ensure all patients, regardless of literacy level, can effectively manage their HIV treatment.
Abstract:
Successful management of HIV requires patient understanding and ability to act on treatment information. We examined the relationship between patient literacy and understanding of HIV treatment. Literacy, knowledge of CD4 count and viral load, and correct identification of HIV medications in regimen were evaluated in 204 patients receiving care in Shreveport, Louisiana and Chicago, Illinois. One-third of patients had limited literacy skills. These patients were less able to describe CD4 count (p < 0.001), viral load (p < 0.001) and to correctly identify medications in their regimen (p < 0.001). In the multivariate analysis, limited literacy was an independent predictor of poor understanding of CD4 count (OR 2.9, 95% CI: 1.3-6.3) and viral load (OR 4.1, 95% CI: 1.9-8.8). For correct medication identification, a significant interaction was found between number of HIV medications and literacy level. Among patients taking only 1-2 HIV medications, 100% of higher literate patients were able to identify their medications, compared to none of the lower literate patients prescribed three or more HIV medications. Patients with limited literacy skills may lack essential knowledge related to their HIV treatment. Clinicians may require additional training for improving communication with these patients.
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