Evidence map›Paper›PMID 31656665›Full record

ArticleJournal of thoracic disease2019

A modified recursive partitioning analysis for predicting overall survival in patients with non-small cell lung cancer and central nervous system metastases.

Thiago Pimentel Muniz, Victor Hugo Fonseca de Jesus, Victor Aurélio Ramos Sousa, Malu Viter da Rosa Barbosa, Vladmir Cláudio Cordeiro de Lima

Open access · diamondAbstract read
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Article in Journal of thoracic disease, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.5field-weighted citation impact, top 29% 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

3 citing papers in PubMed, 4 citations in OpenAlex.

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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 1 institution in 1 country.

Thiago Pimentel MunizDepartment of Medical Oncology, A.C. Camargo Cancer Center, São Paulo, SP, Brazil.
Victor Hugo Fonseca de JesusDepartment of Medical Oncology, A.C. Camargo Cancer Center, São Paulo, SP, Brazil.
Victor Aurélio Ramos SousaDepartment of Medical Oncology, A.C. Camargo Cancer Center, São Paulo, SP, Brazil.
Malu Viter da Rosa BarbosaDepartment of Medical Oncology, A.C. Camargo Cancer Center, São Paulo, SP, Brazil.
Vladmir Cláudio Cordeiro de LimaDepartment of Medical Oncology, A.C. Camargo Cancer Center, São Paulo, SP, Brazil.
AC Camargo Hospital · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNon-small cell lung cancer (NSCLC) is a major cause of brain metastases. Nonetheless, patients with central nervous system (CNS) spread are poorly represented in clinical trials. We sought to evaluate the overall survival (OS) of patients with NSCLC and CNS metastases.

methodsPatients with NSCLC and CNS metastases treated at A. C. Camargo Cancer Center from January 2007 to December 2017 were selected. The primary endpoint was OS following the diagnosis of CNS metastasis. The Kaplan-Meier method was applied to calculate OS. Prognostic factors were assessed by the Cox Proportional Hazards model. As an exploratory analysis, a survival tree was generated based upon the two most statistically significant variables in the multivariate model and one additional clinically meaningful variable.

resultsIn total, 311 patients were included. Median OS was 10.3 months (95% CI, 8.7-13.1 months). ECOG performance status 2-4 (HR 2.12; 95% CI, 1.40-3.20; P<0.01) and the absence of a driver mutation (HR 3.30; 95% CI, 1.85-5.90; P<0.01) were strongly associated with worse OS. A Modified Recursive Partitioning Analysis (mRPA) was developed based on the curves generated by the survival tree. mRPA stratified our cohort in four subgroups with significantly different OS (3.1 to 43 months) and it outperformed both RPA and GPA in predicting OS in our population.

conclusionsOS in our cohort was better than previously reported. However, prognosis is widely variable and is mostly dictated by performance status and the presence of a driver mutation.

Indexed as

brain metastases, prognosis, overall survival (OS)Non-small cell lung cancer (NSCLC)

Identifiers

PMID31656665
PMCPMC6790444
OpenAlexW2977099779

What OpenQuestion holds

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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.