Evidence map›Paper›PMID 32060840›Full record

Observational studyJournal of neuro-oncology2020

Disparities in glioblastoma survival by case volume: a nationwide observational study.

Rahul Raj, Karri Seppä, Tapio Luostarinen, Nea Malila, Matti Seppälä, Janne Pitkäniemi, Miikka Korja

Abstract readObservational Study
In one paragraph

Observational study in Journal of neuro-oncology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing 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

17 citing papers in PubMed.

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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

7 authors.

Rahul RajDepartment of Neurosurgery, University of Helsinki and Helsinki University Hospital, Topeliuksenkatu 5, P.O. Box 266, 00029, Helsinki, Finland.
Karri SeppäFinnish Cancer Registry, Institute for Statistical and Epidemiological Cancer Research, 00130, Helsinki, Finland.
Tapio LuostarinenFinnish Cancer Registry, Institute for Statistical and Epidemiological Cancer Research, 00130, Helsinki, Finland.
Nea MalilaFinnish Cancer Registry, Institute for Statistical and Epidemiological Cancer Research, 00130, Helsinki, Finland.
Matti SeppäläDepartment of Neurosurgery, University of Helsinki and Helsinki University Hospital, Topeliuksenkatu 5, P.O. Box 266, 00029, Helsinki, Finland.
Janne PitkäniemiFinnish Cancer Registry, Institute for Statistical and Epidemiological Cancer Research, 00130, Helsinki, Finland.
Miikka KorjaDepartment of Neurosurgery, University of Helsinki and Helsinki University Hospital, Topeliuksenkatu 5, P.O. Box 266, 00029, Helsinki, Finland. miikka.korja@hus.fi.ORCID http://orcid.org/0000-0002-4463-6954

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionHigh hospital case volumes are associated with improved treatment outcomes for numerous diseases. We assessed the association between academic non-profit hospital case volume and survival of adult glioblastoma patients.

methodsFrom the nationwide Finnish Cancer Registry, we identified all adult (≥ 18 years) patients with histopathological diagnoses of glioblastoma from 2000 to 2013. Five university hospitals (treating all glioblastoma patients in Finland) were classified as high-volume (one hospital), middle-volume (one hospital), and low-volume (three hospitals) based on their annual numbers of cases. We estimated one-year survival rates, estimated median overall survival times, and compared relative excess risk (RER) of death between high, middle, and low-volume hospitals.

resultsA total of 2,045 patients were included. The mean numbers of annually treated patients were 54, 40, and 17 in the high, middle, and low-volume hospitals, respectively. One-year survival rates and median survival times were higher and longer in the high-volume (39%, 9.3 months) and medium-volume (38%, 8.9 months) hospitals than in the low-volume (32%, 7.8 months) hospitals. RER of death was higher in the low-volume hospitals than in the high-volume hospital (RER = 1.19, 95% CI 1.07-1.32, p = 0.002). There was no difference in RER of death between the high-volume and medium-volume hospitals (p = 0.690).

conclusionHigher glioblastoma case volumes were associated with improved survival. Future studies should assess whether this association is due to differences in patient-specific factors or treatment quality.

Indexed as

Outcome Assessment, Health CareAgedBrain NeoplasmsCombined Modality TherapyFemaleFinlandFollow-Up StudiesGlioblastomaHospitals, High-VolumeHospitals, Low-VolumeHumansMaleMiddle AgedNeoplasm Recurrence, LocalPrognosisRegistriesEpidemiological studyGlioblastomaGliomaMalignant gliomaMortalityOutcome

Identifiers

PMID32060840
PMCPMC7136186

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Registered trials

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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.