Evidence map›Paper›PMID 29544511›Full record

ArticleRadiation oncology (London, England)2018

Online advertising and marketing claims by providers of proton beam therapy: are they guideline-based?

Mark T Corkum, Wei Liu, David A Palma, Glenn S Bauman, Robert E Dinniwell, Andrew Warner, Mark V Mishra, Alexander V Louie

Abstract read
In one paragraph

Article in Radiation oncology (London, England), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

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

Who cites it

9 citing papers in PubMed.

  1. Trial
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4 · The record

Corrections and comments

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

8 authors.

Mark T CorkumDepartment of Radiation Oncology, London Health Sciences Centre, 790 Commissioners Road East, London, ON, N6A 4L6, Canada.
Wei LiuDepartment of Radiation Oncology, London Health Sciences Centre, 790 Commissioners Road East, London, ON, N6A 4L6, Canada.
David A PalmaDepartment of Radiation Oncology, London Health Sciences Centre, 790 Commissioners Road East, London, ON, N6A 4L6, Canada.
Glenn S BaumanDepartment of Radiation Oncology, London Health Sciences Centre, 790 Commissioners Road East, London, ON, N6A 4L6, Canada.
Robert E DinniwellDepartment of Radiation Oncology, London Health Sciences Centre, 790 Commissioners Road East, London, ON, N6A 4L6, Canada.
Andrew WarnerDepartment of Radiation Oncology, London Health Sciences Centre, 790 Commissioners Road East, London, ON, N6A 4L6, Canada.
Mark V MishraDepartments of Radiation Oncology, University of Maryland School of Medicine, Baltimore, USA.
Alexander V LouieDepartment of Radiation Oncology, London Health Sciences Centre, 790 Commissioners Road East, London, ON, N6A 4L6, Canada. Alexander.Louie@lhsc.on.ca.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCancer patients frequently search the Internet for treatment options, and hospital websites are seen as reliable sources of knowledge. Guidelines support the use of proton radiotherapy in specific disease sites or on clinical trials. This study aims to evaluate direct-to-consumer advertising content and claims made by proton therapy centre (PTC) websites worldwide.

methodsOperational PTC websites in English were identified through the Particle Therapy Co-Operative Group website. Data abstraction of website content was performed independently by two investigators. Eight international guidelines were consulted to determine guideline-based indications for proton radiotherapy. Univariate and multivariate logistic regression models were used to determine the characteristics of PTC websites that indicated proton radiotherapy offered greater disease control or cure rates.

resultsForty-eight PTCs with 46 English websites were identified. 60·9% of PTC websites claimed proton therapy provided improved disease control or cure. U.S. websites listed more indications than international websites (15·5 ± 5·4 vs. 10·4 ± 5·8, p = 0·004). The most common disease sites advertised were prostate (87·0%), head and neck (87·0%) and pediatrics (82·6%), all of which were indicated in least one international guideline. Several disease sites advertised were not present in any consensus guidelines, including pancreatobiliary (52·2%), breast (50·0%), and esophageal (43·5%) cancers. Multivariate analysis found increasing number of disease sites and claiming their centre was a local or regional leader in proton radiotherapy was associated with indicating proton radiotherapy offers greater disease control or cure.

conclusionsInformation from PTC websites often differs from recommendations found in international consensus guidelines. As online marketing information may have significant influence on patient decision-making, alignment of such information with accepted guidelines and consensus opinion should be adopted by PTC providers.

Indexed as

Guideline AdherenceInternetProton TherapyDirect-to-Consumer AdvertisingHumansNeoplasms

Identifiers

PMID29544511
PMCPMC5856220

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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.