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. 2022 Dec 9:2:100116.
doi: 10.1016/j.pecinn.2022.100116. eCollection 2023 Dec.

Pharmaceutical pictograms: User-centred redesign, selection and validation

Rahul Malhotra  1   2 , Yi Wen Tan  1 , Sumithra Devi Suppiah  1 , Sarah Siew Cheng Tay  3 , Ngiap Chuan Tan  3 , Jianying Liu  3 , Gerald Choon-Huat Koh  4 , Alexandre Chan  5 , Régis Vaillancourt  6 ; PROMISE Study Group
Affiliations

Pharmaceutical pictograms: User-centred redesign, selection and validation

Rahul Malhotra et al. PEC Innov. .

Abstract

Objective: In an earlier study, several tested International Pharmaceutical Federation (FIP) pictograms did not achieve validity among older adults in Singapore. In this study, for 27 unvalidated FIP pictograms, we (1) developed variants of each pictogram, (2) elicited the most-preferred variant, and (3) assessed the validity of the most-preferred variant among older Singaporeans.

Methods: In phase 1, up to three variants of the 27 pictograms were developed, based on older adults' feedback from a previous study. In phase 2, the most-preferred variant of 26 pictograms, which had two or three variants, was selected by 100 older participants. In phase 3, the 27 most-preferred variants (including the pictogram with only one variant) were assessed for validity - transparency and translucency - among 278 older participants (10 pictograms per participant). To evaluate transparency, participants were first asked: "If you see this picture on a medicine label, what do you think it means?" for each assigned pictogram. If they responded, they were asked, "How do you know?", and if not, they were told, "Tell me everything you see in this picture". Then, participants were shown their assigned pictograms again, one by one, and the pictogram's intended meaning was revealed to evaluate translucency. Pictograms were classified as valid (≥66% participants interpreted its intended meaning correctly [transparency criterion] and ≥85% participants rated its representativeness as ≥ 5 [translucency criterion]), partially valid (only transparency criterion fulfilled) or not valid.

Results: In phase 1, 77 variants of the 27 pictograms were developed. In phase 2, a majority of the most-preferred variants were selected by >50% participants. In phase 3, 10 (37.0%) of the 27 pictograms tested were considered valid, and five (18.5%) were partially valid. A higher proportion of pictograms portraying dose and route of administration and precautions were valid or partially valid, versus those depicting indications or side effects.

Conclusion: Contextual redesigning and selection of pharmaceutical pictograms, which initially failed to achieve validity in a population, contributed to their validation.

Innovation: The redesigned validated pictograms from this study can be incorporated into relevant patient information materials in clinical practice.

Keywords: Communication; Healthcare services research; Pharmacy practice; Prescription medication labels.

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Conflict of interest statement

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Figures

Fig. 1
Fig. 1
Flow chart for the three phases of the study.
See this image and copyright information in PMC

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