Evidence map›Paper›PMID 31918702›Full record

SynthesisBMC palliative care2020

Are the MORECare guidelines on reporting of attrition in palliative care research populations appropriate? A systematic review and meta-analysis of randomised controlled trials.

Anna Oriani, Lesley Dunleavy, Paul Sharples, Guillermo Perez Algorta, Nancy J Preston

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMC palliative care, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 4 pooled it
2.3field-weighted citation impact, top 11% of its field
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

23 citing papers in PubMed, 4 syntheses or guidelines pooled it, 28 citations in OpenAlex.

  1. Palliative care interventions for thoracic cancer: a systematic review and meta-analysis identifying the core elements.European respiratory review : an official journal of the European Respiratory Society · 2026
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  13. Cancer cachexia: A scoping review on non-pharmacological interventions.Asia-Pacific journal of oncology nursing · 2024
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  18. Interim Analysis of Attrition Rates in Palliative Care Study on Dignity Therapy.The American journal of hospice & palliative care · 2021
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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

5 authors at 2 institutions in 2 countries.

Anna OrianiPalliative and Supportive Care Clinic, Oncology Institute of Southern Switzerland, via Ospedale 1, 6500, Bellinzona, Ticino, Switzerland. anna.oriani@eoc.ch.ORCID http://orcid.org/0000-0003-0061-4531
Lesley DunleavyInternational Observatory on the End-of-Life Care, Lancaster University, Lancaster, UK.
Paul SharplesMathematics, International Observatory on the End-of-Life Care, Lancaster University, Lancaster, UK.
Guillermo Perez AlgortaDivision of Health Research, Lancaster University, Lancaster, UK.
Nancy J PrestonInternational Observatory on the End-of-Life Care, Lancaster University, Lancaster, UK.
Lancaster University · GBInstitute of Oncology Research · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPalliative care trials have higher rates of attrition. The MORECare guidance recommends applying classifications of attrition to report attrition to help interpret trial results. The guidance separates attrition into three categories: attrition due to death, illness or at random. The aim of our study is to apply the MORECare classifications on reported attrition rates in trials.

methodsA systematic review was conducted and attrition classifications retrospectively applied. Four databases, EMBASE; Medline, CINHAL and PsychINFO, were searched for randomised controlled trials of palliative care populations from 01.01.2010 to 08.10.2016. This systematic review is part of a larger review looking at recruitment to randomised controlled trials in palliative care, from January 1990 to early October 2016. We ran random-effect models with and without moderators and descriptive statistics to calculate rates of missing data.

resultsOne hundred nineteen trials showed a total attrition of 29% (95% CI 28 to 30%). We applied the MORECare classifications of attrition to the 91 papers that contained sufficient information. The main reason for attrition was attrition due to death with a weighted mean of 31.6% (SD 27.4) of attrition cases. Attrition due to illness was cited as the reason for 17.6% (SD 24.5) of participants. In 50.8% (SD 26.5) of cases, the attrition was at random. We did not observe significant differences in missing data between total attrition in non-cancer patients (26%; 95% CI 18-34%) and cancer patients (24%; 95% CI 20-29%). There was significantly more missing data in outpatients (29%; 95% CI 22-36%) than inpatients (16%; 95% CI 10-23%). We noted increased attrition in trials with longer durations.

conclusionReporting the cause of attrition is useful in helping to understand trial results. Prospective reporting using the MORECare classifications should improve our understanding of future trials.

Indexed as

Guidelines as TopicHumansPalliative CareRandomized Controlled Trials as TopicResearch SubjectsRisk Managementattritionmissing dataMORECare guidelinespalliative careRandomised controlled trialssystematic review

Identifiers

PMID31918702
PMCPMC6953282
OpenAlexW2999724196

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.