Evidence map›Paper›PMID 41951706›Full record

ArticleScientific reports2026

Development of a questionnaire to assess the medication literacy of patients receiving oral anticancer drugs.

Wolfgang Fehrmann, Anna Katharina Moritz, Vanessa Basten, Markus K Schuler, Matthias Schmid, Nicole Ernstmann, Ulrich Jaehde

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Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

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No citing paper in PubMed yet.

4 · The record

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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Wolfgang FehrmannDepartment of Clinical Pharmacy, Institute of Pharmacy, University of Bonn, An der Immenburg 4, Bonn, 53121, Germany.
Anna Katharina MoritzFaculty of Medicine and University Hospital Cologne, Chair of Health Services Research, Institute of Medical Sociology, Health Services Research, and Rehabilitation Science (IMVR), University of Cologne, Cologne, Germany.
Vanessa BastenInstitute of Medical Biometrics, Informatics, and Epidemiology, University Hospital Bonn, Bonn, Germany.
Markus K SchulerDepartment of Internal Medicine I, University Hospital Carl Gustav Carus, Technical University at Dresden, Dresden, Germany.
Matthias SchmidInstitute of Medical Biometrics, Informatics, and Epidemiology, University Hospital Bonn, Bonn, Germany.
Nicole ErnstmannFaculty of Medicine and University Hospital Cologne, Chair of Health Services Research, Institute of Medical Sociology, Health Services Research, and Rehabilitation Science (IMVR), University of Cologne, Cologne, Germany.
Ulrich JaehdeDepartment of Clinical Pharmacy, Institute of Pharmacy, University of Bonn, An der Immenburg 4, Bonn, 53121, Germany. u.jaehde@uni-bonn.de.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Medication literacy is particularly important for patients undergoing oral anticancer therapy, as this treatment involves additional challenges and responsibilities compared to intravenous chemotherapy. The aim of this study was to develop a questionnaire to measure the medication literacy of patients receiving oral anticancer therapy. Following semi-structured interviews and an expert focus group, a first draft of the questionnaire was developed. The draft consisted of two parts, each containing four dimensions. Part A of the questionnaire measured patients' self-assessed medication literacy, whereas Part B measured their functional medication literacy. After this, both parts of the draft questionnaire were evaluated by conducting a patient survey in oncology practices and community pharmacies. Based on the results of factor analyses, the questionnaire was adapted and finalised. Lastly, the criterion-related validity of the final questionnaire was tested using linear regression analysis, with the aim of investigating its possible influence on quality of life and patient enablement. Factor analysis resulted in a questionnaire that contained 27 items across 7 dimensions. A total of 307 patients was included in the patient survey. Patients achieved an average of 36.7 out of 50 points in Part A and 11.7 out of 17 points in Part B of the final instrument, with higher scores indicating better results. Part A was found to be positively associated with quality of life and patient enablement. While Part A exhibited sound psychometric criteria, Part B still lacked sufficient internal consistency. In conclusion, we developed the first medication literacy questionnaire designed completely from scratch for cancer patients receiving oral anticancer therapy. The part on self-assessed medication literacy could be used as a patient-relevant endpoint or for identifying patients in need of further support with their medication. The part on functional medication literacy needs further refinement. This project is registered in the German Clinical Trials Register (no. DRKS00034341, registration date: 2024-06-03; https://drks.de/search/en/trial/DRKS00034341 ).

Indexed as

Antineoplastic AgentsHealth LiteracyNeoplasmsAdministration, OralAdultAgedFemaleHumansMaleMiddle AgedQuality of LifeSurveys and QuestionnairesAntineoplastic AgentsHealth literacyMedication literacyOral anticancer therapyQuestionnaire development

Identifiers

PMID41951706
PMCPMC13068952

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.