Evidence map›Paper›PMID 32406858›Full record

ArticleJournal of medical Internet research2020

Web-Based Self-Management for Patients With Lymphoma: Assessment of the Reach of Intervention of a Randomized Controlled Trial.

Lindy P J Arts, Simone Oerlemans, Eduardus F M Posthuma, Djamila E Issa, Margriet Oosterveld, René van der Griend, Marten R Nijziel, Lonneke V van de Poll-Franse

Abstract read
In one paragraph

Article in Journal of medical Internet research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Trial
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.

Lindy P J ArtsNetherlands Comprehensive Cancer Organisation, Utrecht, Netherlands.ORCID 0000-0002-5052-4238
Simone OerlemansNetherlands Comprehensive Cancer Organisation, Utrecht, Netherlands.ORCID 0000-0003-1595-7262
Eduardus F M PosthumaDepartment of Internal Medicine, Reinier de Graaf Hospital, Delft, Netherlands.ORCID 0000-0002-0882-2346
Djamila E IssaDepartment of Internal Medicine, Jeroen Bosch Hospital, 's-Hertogenbosch, Netherlands.ORCID 0000-0002-4512-7019
Margriet OosterveldDepartment of Internal Medicine, Canisius-Wilhelmina Hospital, Nijmegen, Netherlands.ORCID 0000-0002-6742-9261
René van der GriendDepartment of Internal Medicine, Diakonessenhuis, Utrecht/Zeist, Netherlands.ORCID 0000-0002-3609-4550
Marten R NijzielDepartment of Internal Medicine, Catharina Hospital, Eindhoven, Netherlands.ORCID 0000-0001-9069-4939
Lonneke V van de Poll-FranseNetherlands Comprehensive Cancer Organisation, Utrecht, Netherlands.ORCID 0000-0003-0413-6872

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRandomized controlled trials (RCTs) often provide accurate estimates of the internal validity of an intervention but lack information on external validity (generalizability). We conducted an RCT on the effectiveness of a self-management intervention among patients with lymphoma in a population-based setting.

objectiveThe objectives of the current study were to describe the proportion of RCT participants compared to all patients invited to participate, and compare sociodemographic and clinical characteristics of RCT participants with all respondents, all patients invited to participate, and all patients selected from the Netherlands Cancer Registry (NCR) to determine the reach of the intervention. An additional objective was to assess differences on RCT outcome variables between RCT and paper respondents.

methodsPatients with lymphoma or chronic lymphocytic leukemia ≥18 years old at diagnosis from 13 hospitals in the Netherlands were selected from the population-based NCR, which routinely collects data on sociodemographic and clinical characteristics. Eligible patients were invited to participate in an RCT and complete a questionnaire. Web-based completion determined RCT enrollment, whereas paper respondents were followed observationally.

resultsA total of 1193 patients were selected from the NCR, 892 (74.77%) of whom were invited to participate in the trial by their hematologist after verifying eligibility. Among those invited, 25.4% (227/892) completed the web-based questionnaire and were enrolled in the RCT. The RCT participants were younger and there was a higher proportion of men than nonparticipants (P<.001). In addition, 25.7% (229/892) of those invited opted to participate in the paper-based observational follow-up study. Compared with paper respondents, RCT participants were younger (P<.001), with a higher proportion of men (P=.002), and had higher education levels (P=.02). RCT participants more often wanted to receive all available information on their disease (P<.001), whereas paper respondents reported higher levels of emotional distress (P=.009).

conclusionsFrom a population-based sample of eligible patients, the participation rate in the RCT was approximately 25%. RCT participants may not be representative of the target population because of different sociodemographic and clinical characteristics. Since RCT participants represent a minority of the target population, RCT results should be interpreted with caution as patients in the RCT may be those least in need of a self-management intervention.

trial registrationNetherlands Trial Register NTR5953; https://www.trialregister.nl/trial/5790.

Indexed as

FemaleHumansInternetLymphomaMaleMiddle AgedRandomized Controlled Trials as TopicSelf-Managementlymphomaparticipation, web-based interventionpopulation-based registrypragmaticrandomized controlled trialreachuptake

Identifiers

PMID32406858
PMCPMC7256744

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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.