Evidence map›Paper›PMID 42550300›Full record

ArticleSupportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer2026

Online cancer forums and complementary and alternative medicine in cancer care: effects of ehealth literacy and psychological distress on use and attitudes.

G Ciarlo, M Oehlrich, J Huebner

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Article in Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer, 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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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

3 authors.

G CiarloMedical Clinic 1, Gastroenterology, Hepatology, Pneumology, Allergology, Nutritional Medicine, Endocrinology, Diabetology, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt Am Main, Germany. Gianluca.Ciarlo@unimedizin-ffm.de.ORCID http://orcid.org/0000-0002-1406-0229
M OehlrichManagement Department, Accadis Hochschule, Am Weidenring 4, 61352, Bad Homburg Vor Der Höhe, Germany.
J HuebnerKlinik Für Innere Medizin II, Universitätsklinikum Jena, Am Klinikum 1, 07747, Jena, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeOnline cancer forums are often assumed to promote misinformation and unsupported treatment claims, including some non-evidence-based complementary and alternative medicine (CAM) approaches. This study examined the relationship between online cancer forum use, attitudes toward complementary and alternative medicine (CAM), and the use of non-evidence-based therapies, with a specific focus on CAM approaches prevalent in German-speaking countries.

methodsA cross-sectional anonymous online survey was conducted in June-July 2025 among adult users of the largest German cancer forum, assessing forum use, CAM-related attitudes (defined according to the German S3 guideline checklist, version 1.2), eHealth literacy, psychological distress, and sociodemographic and disease-related variables. Forum use was dichotomized by median split, and data were analyzed using non-parametric tests and multivariable regression models.

resultsAmong 458 participants, high versus low forum use differed by sociodemographic and disease-related factors but was not associated with eHealth literacy or psychological distress. Among CAM users (44.3%, n = 203), CAM use intensity was moderate (median = 2, IQR 1-3) and showed no association with forum use, eHealth literacy, psychological distress, or sociodemographic variables; no independent predictors were identified. CAM-related forum discussions were rated as significantly less trustworthy than discussions on conventional cancer treatments (t(383) = 16.88, p < 0.001), independent of eHealth literacy, psychological distress, or participant role.

conclusionThe use of CAM approaches, including both evidence-based supportive interventions and non-evidence-based methods, was not associated with forum exposure, eHealth literacy, or psychological distress. Forum users demonstrated differentiated trust patterns, with consistently lower perceived credibility attributed to CAM-related discussions compared with discussions on conventional cancer treatments. IMPLICATIONS FOR CANCER SURVIVORS: For cancer survivors, online cancer forums appear to function primarily as contextual support resources rather than drivers of non-evidence-based treatment decisions. Clinicians should therefore address forum use openly and early, focusing on guidance and shared decision-making instead of discouragement.

Indexed as

Complementary TherapiesHealth LiteracyNeoplasmsPsychological DistressAdultAgedCross-Sectional StudiesFemaleGermanyHealth Knowledge, Attitudes, PracticeHumansInternetMaleMiddle AgedSurveys and QuestionnairesTelemedicineCAMCancer careDecision-makingeHealth literacyOnline forumsPsychological distress

Identifiers

PMID42550300
PMCPMC13437653

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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.