Evidence map›Paper›PMID 29722148›Full record

ArticleThoracic cancer2018

EGFR mutations in early-stage and advanced-stage lung adenocarcinoma: Analysis based on large-scale data from China.

Can Pi, Chong-Rui Xu, Ming-Feng Zhang, Xiao-Xiao Peng, Xue-Wu Wei, Xing Gao, Hong-Hong Yan, Qing Zhou

Open access · goldAbstract read
In one paragraph

Article in Thoracic cancer, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 7% 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

39 citing papers in PubMed, 1 synthesis or guideline pooled it, 73 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Molecular and clinical disparity ofTranslational lung cancer research · 2026
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  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Observational
  11. Article
  12. Article
  13. Article
  14. Prevalence ofLung Cancer (Auckland, N.Z.) · 2025
    Article
  15. Article
  16. Article
  17. Future oncology (London, England) · 2024
    Article
  18. Article
  19. Article
  20. Article
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.

Can PiThe Second School of Clinical Medicine, Southern Medical University, Guangzhou, China.
Chong-Rui XuGuangdong Lung Cancer Institute, Guangdong General Hospital and Guangdong Academy of Medical Sciences, Guangzhou, China.
Ming-Feng ZhangThe Second School of Clinical Medicine, Southern Medical University, Guangzhou, China.
Xiao-Xiao PengGuangdong Lung Cancer Institute, Guangdong General Hospital and Guangdong Academy of Medical Sciences, Guangzhou, China.
Xue-Wu WeiGuangdong Lung Cancer Institute, Guangdong General Hospital and Guangdong Academy of Medical Sciences, Guangzhou, China.
Xing GaoThe Second School of Clinical Medicine, Southern Medical University, Guangzhou, China.
Hong-Hong YanGuangdong Lung Cancer Institute, Guangdong General Hospital and Guangdong Academy of Medical Sciences, Guangzhou, China.
Qing ZhouThe Second School of Clinical Medicine, Southern Medical University, Guangzhou, China.ORCID 0000-0002-0478-176X
Guangdong General Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEGFR-tyrosine kinase inhibitors play an important role in the treatment of advanced non-small cell lung cancer (NSCLC). EGFR mutations in advanced NSCLC occur in approximately 35% of Asian patients and 60% of patients with adenocarcinoma. However, the frequency and type of EGFR mutations in early-stage lung adenocarcinoma remain unclear.

methodsWe retrospectively collected data on patients diagnosed with lung adenocarcinoma tested for EGFR mutation. Early stage was defined as pathological stage IA-IIIA after radical lung cancer surgery, and advanced stage was defined as clinical stage IIIB without the opportunity for curative treatment or stage IV according to the American Joint Committee on Cancer Staging Manual, 7th edition.

resultsA total of 1699 patients were enrolled in this study from May 2014 to May 2016; 750 were assigned to the early-stage and 949 to the advanced-stage group. Baseline characteristics of the two groups were balanced, except that there were more smokers in the advanced-stage group (P < 0.001). The total EGFR mutation rate in the early-stage group was similar to that in the advanced-stage group (53.6% vs. 51.4%, respectively; P = 0.379). There was no significant difference in EGFR mutation type between the two groups. In subgroup analysis of smoking history, there was no difference in EGFR mutation frequency or type between the early-stage and advanced-stage groups.

conclusionEarly-stage and advanced-stage groups exhibited the same EGFR mutation frequencies and types.

Indexed as

Adenocarcinoma of LungAgedAsian PeopleCarcinoma, Non-Small-Cell LungChinaErbB ReceptorsFemaleHumansMaleMiddle AgedMutationNeoplasm StagingProtein Kinase InhibitorsRetrospective StudiesSmokingEGFR protein, humanErbB ReceptorsProtein Kinase InhibitorsEGFR mutationlung adenocarcinomamutation frequencymutation typestaging

Identifiers

PMID29722148
PMCPMC6026603
OpenAlexW2801241205

What OpenQuestion holds

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LicenceCC BY-NC
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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 OpenQuestion graph.