Evidence map›Paper›PMID 30239162›Full record

ArticleCancer medicine2018

Radiotherapy improves the survival of patients with stage IV NSCLC: A propensity score matched analysis of the SEER database.

Rui Zhang, Ping Li, Qin Li, Yunfeng Qiao, Tangpeng Xu, Peng Ruan, Qibin Song, Zhenming Fu

Open access · goldAbstract read
In one paragraph

Article in Cancer medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.3field-weighted citation impact, top 19% 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, 18 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

8 authors at 1 institution in 1 country.

Rui ZhangCancer Center, Renmin Hospital of Wuhan University, Wuhan, China.ORCID 0000-0003-0921-0920
Ping LiCancer Center, Renmin Hospital of Wuhan University, Wuhan, China.
Qin LiCancer Center, Renmin Hospital of Wuhan University, Wuhan, China.
Yunfeng QiaoCancer Center, Renmin Hospital of Wuhan University, Wuhan, China.
Tangpeng XuCancer Center, Renmin Hospital of Wuhan University, Wuhan, China.
Peng RuanCancer Center, Renmin Hospital of Wuhan University, Wuhan, China.
Qibin SongCancer Center, Renmin Hospital of Wuhan University, Wuhan, China.
Zhenming FuCancer Center, Renmin Hospital of Wuhan University, Wuhan, China.ORCID 0000-0003-2416-9591
Wuhan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThe survival advantage of radiotherapy (RT) for patients with stage IV non-small cell lung cancer (NSCLC) has not been adequately evaluated.

methodsWe analyzed stage IV NSCLC patients enrolled from the Surveillance, Epidemiology, and End Results (SEER) registry through January 2010 to December 2012. Propensity score (PS) analysis with 1:1 nearest neighbor matching method was used to ensure well-balanced characteristics of all comparison groups by histological types and metastatic sites. Kaplan-Meier and Cox proportional hazardous model were used to evaluate the overall survival (OS), cancer-specific survival (CSS), and corresponding 95% confidence interval (95%CI).

resultsGenerally speaking, there was a trend toward improved OS and CSS for using RT to stage IV NSCLC patients for any metastatic sites and for any histological types except adenocarcinoma (AD). Radiotherapy significantly improved the survival of NSCLC patients with metastasis to brain (P < 0.001), especially for AD (P < 0.001). For stage IV lung cancer patients with squamous cell carcinoma (SQC), RT for any metastatic sites could universally improve the OS (P < 0.001) and CSS (P < 0.001). In particular, RT was also associated with improving OS (P < 0.001) and CSS (P = 0.012) for stage IV patients with metastases of two or more sites, ie, polymetastatic disease. Furthermore, for those stage IV SQC patients without metastasis, RT, most likely to the primary site, also significantly improved the survival (P < 0.001).

conclusionsThe results support that RT might improve the survival of patients with metastatic NSCLC in a PS-matched patient cohort from the large SEER database. It is prudent to carefully select patients for RT in metastatic NSCLC.

Indexed as

AgedCarcinoma, Non-Small-Cell LungFemaleHumansLung NeoplasmsMaleMiddle AgedNeoplasm MetastasisNeoplasm StagingPropensity ScoreSEER ProgramSurvival AnalysisTreatment Outcome

Identifiers

PMID30239162
PMCPMC6198236
OpenAlexW2894056457

What OpenQuestion holds

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LicenceCC BY
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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.