Evidence map›Paper›PMID 36968289›Full record

ArticleNeuro-oncology advances

Epidemiological trends, prognostic factors, and survival outcomes of synchronous brain metastases from 2015 to 2019: a population-based study.

Megan Parker, Kelly Jiang, Jordina Rincon-Torroella, Joshua Materi, Tej D Azad, David O Kamson, Lawrence R Kleinberg, Chetan Bettegowda

Open access · goldFull text read
In one paragraph

Article in Neuro-oncology advances. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
5.2field-weighted citation impact, top 4% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. An MRI Atlas of Regional Brain Vulnerability to Metastatic Disease.medRxiv : the preprint server for health sciences · 2026
    Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Auxiliary Value of [Cancers · 2025
    Article
  15. Article
  16. Article
  17. Molecular Underpinnings of Brain Metastases.International journal of molecular sciences · 2025
    Review
  18. Article
  19. Article
  20. Review
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 at 1 institution in 1 country.

Megan ParkerDepartment of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.ORCID https://orcid.org/0000-0002-1096-9662
Kelly JiangDepartment of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.ORCID https://orcid.org/0000-0002-1144-7882
Jordina Rincon-TorroellaDepartment of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.ORCID https://orcid.org/0000-0003-4798-8231
Joshua MateriDepartment of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.ORCID https://orcid.org/0000-0001-9786-9068
Tej D AzadDepartment of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
David O KamsonDepartment of Neurology, Brain Cancer Program, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
Lawrence R KleinbergDepartment of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University, Baltimore, Maryland, USA.
Chetan BettegowdaDepartment of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
Johns Hopkins University · US

Funding

Research Education Program for Residents and Fellows in Neurology - PorrasR25NS065729 · NINDS · JOHNS HOPKINS UNIVERSITY · PI HILLIS, ARGYE E. · 2009 to 2024
$3.3M
NINDS NIH HHS R25 NS065729
6 · The paper itself

Abstract

Background: Brain metastases (BM) constitute a significant cause of oncological mortality. Statistics on the incidence of BM are limited because of the lack of systematic nationwide reporting. We report the incidence of synchronous brain metastases (sBM), defined as BM identified at the time of primary cancer diagnosis from 2015 to 2019 using National Cancer Institute's (NCI's) Surveillance, Epidemiology, and End Results Program database. Methods: We identified 1,872,057 patients with malignancies diagnosed between 2015 and 2019 from the SEER 17 Registries database, including 35,986 (1.9%) patients with sBM. Age-adjusted incidence rates were examined using the NCI Joinpoint software. Kaplan-Meier curves and a multivariate Cox regression model were used to investigate survival. Results: The incidence rate of sBM from 2015 to 2019 was 7.1 persons per 100,000. Lung and bronchus cancers had the highest incidence of sBM (5.18 to 5.64 per 100,000), followed by melanoma (0.30 to 0.34 per 100,000) and breast cancers (0.24 to 0.30 per 100,000). In children, renal tumors had the highest sBM incidence. sBM were associated with poorer survival than extracranial metastases only (hazard ratio [HR]: 1.40 [95% CI: 1.39-1.42], Conclusions: The incidence rate of sBM has remained similar to rates reported over the last 9 years, with the majority associated with primary lung and bronchus cancers. sBM represent a national healthcare burden with tremendous mortality in pediatric and adult populations. This population may benefit from improved screening and treatment strategies.

Indexed as

brain metastasesincidenceprognosisSEERsurvival

Identifiers

PMID36968289
PMCPMC10034914
OpenAlexW4323364032

What Socratic holds

Textfull text, public
LicenceCC BY
measurements read204
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 Socratic graph.