Evidence map›Paper›PMID 32614441›Full record

ArticleNeurosurgery2020

The Ki-67 Proliferation Index as a Marker of Time to Recurrence in Intracranial Meningioma.

Christian Mirian, Simon Skyrman, Jiri Bartek, Lasse Rehné Jensen, Lars Kihlström, Petter Förander, Abiel Orrego, Tiit Mathiesen

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Article in Neurosurgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 4 pooled it
7.0field-weighted citation impact, top 2% 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

40 citing papers in PubMed, 4 syntheses or guidelines pooled it, 75 citations in OpenAlex.

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  11. AreFrontiers in endocrinology · 2025
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  18. Meningioma recurrence: Time for an online prediction tool?Surgical neurology international · 2024
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Christian MirianDepartment of Neurosurgery, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark.ORCID 0000-0001-6801-0123
Simon SkyrmanDepartment of Neurosurgery, Karolinska University Hospital, Stockholm, Sweden.ORCID 0000-0001-5555-0374
Jiri BartekDepartment of Neurosurgery, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark.
Lasse Rehné JensenDepartment of Neurosurgery, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark.ORCID 0000-0001-6931-4399
Lars KihlströmDepartment of Neurosurgery, Karolinska University Hospital, Stockholm, Sweden.
Petter FöranderDepartment of Neurosurgery, Karolinska University Hospital, Stockholm, Sweden.
Abiel OrregoDepartment of Pathology, Karolinska University Hospital, Stockholm, Sweden.
Tiit MathiesenDepartment of Neurosurgery, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark.
Karolinska University Hospital · SECopenhagen University Hospital · DKUniversity of Copenhagen · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere are examples of incongruence between the WHO grade and clinical course in meningioma patients. This incongruence between WHO grade and recurrence has led to search for other prognostic histological markers.

objectiveTo study the correlation between the Ki-67 proliferative index (PI), risk of recurrence, and recurrence rates in meningioma patients.

methodsWe prospectively collected pathological diagnosis of de novo consecutive meningiomas. In total, we followed 159 patients with clinical controls until recurrence, death, or emigration. We estimated the correlation between risk of recurrence and Ki-67 PI when adjusted for age at diagnosis, sex, WHO grade, extent of surgical resection, and tumor location. We estimated the cumulative incidence of recurrence when considering death without recurrence a competing risk. We report recurrence rates per 100 person-years.

resultsA 1%-point increase of Ki-67 PI yielded a hazard ratio of 1.12 (95% CI: 1.01-1.24) in a multivariate analysis. The cumulative incidence of recurrence was 3% for Ki-67 0% to 4% vs 19% for Ki-67 > 4% meningiomas after 1 yr, but 24% vs 35%, respectively, after 10 yr. There was no significant difference in mean Ki-67 PI between nonrecurrent and recurrent meningioma in a 2-sample t-test (P = .08). The strongest relationship was detected between Ki-67 PI and time to recurrence: Ki-67 < 4% meningiomas recurred after median 4.8 yr, compared to 0.60 to 0.75 yr for patients with higher Ki-67 PI.

conclusionKi-67 PI was a marker for time to recurrence rather than a predictor of recurrence. Ki-67 PI may be utilized for patient tailored follow-up.

Indexed as

Meningeal NeoplasmsMeningiomaCell ProliferationHumansKi-67 AntigenNeoplasm Recurrence, LocalRetrospective StudiesKi-67 AntigenBrain tumorKi-67MeningiomaProliferative indexRecurrence

Identifiers

PMID32614441
OpenAlexW3040059694

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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.