The impact of illustrated side effect information on understanding and sustained retention of antiretroviral side effect knowledge.

BACKGROUND: Prompt management of side effects is critical to supporting adherence to antiretroviral (ARV) medication. OBJECTIVE: This study examines the impact of presenting side effect information using simple text combined with pictograms on sustained knowledge of ARV side effects over three months. METHOD: Previously designed side effect pictograms, combined with simple text, were incorporated into a side effects panel within an ARV information leaflet. In a randomised controlled study, 116 limited literacy HIV patients taking ARVs were randomly allocated to either control (standard care) or intervention groups (standard care plus illustrated information). Side effect knowledge was assessed at baseline, and intervention patients received the illustrated leaflet. Knowledge was re-tested at one and three months. Interpretation of side effect pictograms was evaluated at one month. RESULTS: In intervention patients, mean side effect knowledge increased from 45.9% (baseline) to 95.7% (three months; p<0.0001), and pictogram interpretation was good. Knowledge did not change significantly in the control group. All found the pictograms clear and useful, and endorsed their routine use. CONCLUSIONS: Providing patients with simple written information containing pictograms on ARV side effects significantly improved side effect knowledge, sustained over time, in limited literacy, rural South African HIV patients.

An illustrated leaflet containing antiretroviral information targeted for low-literate readers: development and evaluation.

OBJECTIVE: To apply a dual visual/textual modal approach in developing and evaluating a medicine information leaflet with pictograms suitable for low-literate HIV/AIDS patients. To identify and recommend best practices in this type of information design. METHODS: A simple leaflet incorporating pictograms was designed for an antiretroviral regimen. Cognitive testing for understanding was conducted in 39 low-literate, South African, antiretroviral-naïve adults. Participants were required to locate and explain the information, and were questioned on their opinion of leaflet layout and contents. RESULTS: Average understanding of the leaflet was 60%. Basic medication information was the best understood. An overall lack of knowledge of HIV/AIDS and its core concepts was found. Only half the participants considered this simple leaflet "easy" to read. All endorsed the inclusion of pictograms. CONCLUSION: This testing method used in ARV-naïve individuals was invaluable in identifying areas needing modification before its use in patients. Text associated with pictograms was more noticeable and better understood, but only if they were closely juxtaposed. PRACTICE IMPLICATIONS: Leaflet design should consider culture and literacy skills, be informed by learning theory and design principles, include visuals to enhance appeal and improve understanding, and involve end-users. Verbal counseling should accompany written information.

Developing visual images for communicating information aboutantiretroviral side effects to a low-literate population.

The side effects of antiretroviral (ARV) therapy are linked to altered quality of life and adherence. Poor adherence has also been associated with low health-literacy skills, with an uninformed patient more likely to make ARV-related decisions that compromise the efficacy of the treatment. Low literacy skills disempower patients in interactions with healthcare providers and preclude the use of existing written patient information materials, which are generally written at a high reading level. Visual images or pictograms used as a counselling tool or included in patient information leaflets have been shown to improve patients' knowledge, particularly in low-literate groups. The objective of this study was to design visuals or pictograms illustrating various ARV side effects and to evaluate them in a low-literate South African Xhosa population. Core images were generated either from a design workshop or from posed photos or images from textbooks. The research team worked closely with a graphic artist. Initial versions of the images were discussed and assessed in group discussions, and then modified and eventually evaluated quantitatively in individual interviews with 40 participants who each had a maximum of 10 years of schooling. The familiarity of the human body, its facial expressions, postures and actions contextualised the information and contributed to the participants' understanding. Visuals that were simple, had a clear central focus and reflected familiar body experiences (e.g. vomiting) were highly successful. The introduction of abstract elements (e.g. fever) and metaphorical images (e.g. nightmares) presented problems for interpretation, particularly to those with the lowest educational levels. We recommend that such visual images should be designed in collaboration with the target population and a graphic artist, taking cognisance of the audience's literacy skills and culture, and should employ a multistage iterative process of modification and evaluation.