Evidence map›Paper›PMID 26617891›Full record

SynthesisInternational journal of clinical and experimental pathology2015

Prognosis value of MGMT promoter methylation for patients with lung cancer: a meta-analysis.

Chao Chen, Haiqing Hua, Chenglong Han, Yuan Cheng, Yin Cheng, Zhen Wang, Jutao Bao

Open access · greenAbstract readMeta-AnalysisReview
In one paragraph

Synthesis in International journal of clinical and experimental pathology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 3 pooled it
0.9field-weighted citation impact, top 25% 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

10 citing papers in PubMed, 3 syntheses or guidelines pooled it, 13 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Review
  6. Article
  7. The OReports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology · 2022
    Article
  8. Review
  9. Article
  10. 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

7 authors at 1 institution in 1 country.

Chao ChenDepartment of Respiratory Medicine, Jiangyin Hospital of Traditional Chinese Medicine, Nanjing Traditional Chinese Medcine University Jiangyin 214400, China.
Haiqing HuaDepartment of Respiratory Medicine, Jiangyin Hospital of Traditional Chinese Medicine, Nanjing Traditional Chinese Medcine University Jiangyin 214400, China.
Chenglong HanDepartment of Respiratory Medicine, Jiangyin Hospital of Traditional Chinese Medicine, Nanjing Traditional Chinese Medcine University Jiangyin 214400, China.
Yuan ChengDepartment of Respiratory Medicine, Jiangyin Hospital of Traditional Chinese Medicine, Nanjing Traditional Chinese Medcine University Jiangyin 214400, China.
Yin ChengDepartment of Respiratory Medicine, Jiangyin Hospital of Traditional Chinese Medicine, Nanjing Traditional Chinese Medcine University Jiangyin 214400, China.
Zhen WangDepartment of Respiratory Medicine, Jiangyin Hospital of Traditional Chinese Medicine, Nanjing Traditional Chinese Medcine University Jiangyin 214400, China.
Jutao BaoDepartment of Respiratory Medicine, Jiangyin Hospital of Traditional Chinese Medicine, Nanjing Traditional Chinese Medcine University Jiangyin 214400, China.
Jiangyin People's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The role of MGMT promoter methylation in lung cancer (LC) remains controversial. To clarify the association of MGMT promoter methylation with survival in LC, we performed a meta-analysis of the literature with meta-analysis. Trials were selected for further analysis if they provided an independent assessment of MGMT promoter methylation in LC and reported the survival data in the context of MGMT promoter methylation status. Subgroup analyses were conducted according to the study characteristic. A total of 9 trials, which comprised 859 patients, were included in the meta-analysis. The combined hazard ratio (HR) of 1.27 [95% CI 0.88-1.82; test for heterogeneity P = 0.027] suggests that MGMT promoter methylation has none impact on patient survival. In Stage I-III or younger populations, a significant association was found for MGMT promoter methylation in the prognosis of LC. In addition, the heterogeneity disappeared when the analysis was restricted to Stage I-III LC. Our analysis indicates that MGMT promoter methylation in stage I-III or younger patients was significantly correlated with wore survival. Further study is needed to determine these specific subgroups of LC patients.

Indexed as

DNA MethylationDNA Modification MethylasesDNA Repair EnzymesHumansLung NeoplasmsPrognosisPromoter Regions, GeneticProportional Hazards ModelsTumor Suppressor ProteinsDNA Modification MethylasesDNA Repair EnzymesMGMT protein, humanTumor Suppressor Proteinslung cancermeta-analysismethylationMGMTprognosis

Identifiers

PMID26617891
PMCPMC4637707
OpenAlexW2412620803

What OpenQuestion holds

Textmetadata
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 OpenQuestion graph.