Evidence map›Paper›PMID 33255505›Full record

ReviewCancers2020

Research Objectives, Statistical Analyses and Interpretation of Health-Related Quality of Life Data in Glioma Research: A Systematic Review.

Marijke B Coomans, Marthe C M Peeters, Johan A F Koekkoek, Jan W Schoones, Jaap Reijneveld, Martin J B Taphoorn, Linda Dirven

Abstract readReview
In one paragraph

Review in Cancers, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
–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

4 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Neuro-oncology practice · 2025
    Article
  3. Article
  4. Article
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

7 authors.

Marijke B CoomansDepartment of Neurology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands.
Marthe C M PeetersDepartment of Neurology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands.ORCID 0000-0003-3031-9891
Johan A F KoekkoekDepartment of Neurology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands.ORCID 0000-0003-1120-4781
Jan W SchoonesWalaeus Library, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands.
Jaap ReijneveldDepartment of Neurology and Brain Tumour Center Amsterdam, Amsterdam University Medical Center, 1007 MB Amsterdam, The Netherlands.
Martin J B TaphoornDepartment of Neurology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands.
Linda DirvenDepartment of Neurology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHealth-related quality of life (HRQoL) has become an increasingly important patient-reported outcome in glioma studies. Ideally, collected HRQoL data should be exploited to the full, with proper analytical methods. This systematic review aimed to provide an overview on how HRQoL data is currently evaluated in glioma studies, focusing on the research objectives and statistical analyses of HRQoL data.

methodsA systematic literature search in the databases PubMed, Embase, Web of Science and Cochrane was conducted up to 5 June 2020. Articles were selected based on predetermined inclusion criteria and information on study design, HRQoL instrument, HRQoL research objective and statistical methods were extracted.

resultsA total of 170 articles describing 154 unique studies were eligible, in which 17 different HRQoL instruments were used. HRQoL was the primary outcome in 62% of the included articles, and 51% investigated ≥1 research question with respect to HRQoL, for which various analytical methods were used. In only 42% of the articles analyzing HRQoL results over time, the minimally clinical important difference was reported and interpreted. Eighty-six percent of articles reported HRQoL results at a group level only, and not at the individual patient level.

conclusionCurrently, the assessment and analysis of HRQoL outcomes in glioma studies is highly variable. Opportunities to maximize information obtained with HRQoL data include appropriate and complementary analyses at both the group and individual level, comprehensive reporting of HRQoL results in separate articles or supplementary material, and adherence to existing guidelines about the assessment, analysis and reporting of patient-reported outcomes.

Indexed as

brain tumorHRQoLpatient-reported outcomePROquality of lifequestionnaire

Identifiers

PMID33255505
PMCPMC7760401

What OpenQuestion holds

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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.