Evidence map›Paper›PMID 26947875›Full record

ArticleTranslational oncology2016

Prognostic Value of SMAD4 in Pancreatic Cancer: A Meta-Analysis.

Xing Shugang, Yang Hongfa, Liu Jianpeng, Zheng Xu, Feng Jingqi, Li Xiangxiang, Li Wei

Open access · goldAbstract read
In one paragraph

Article in Translational oncology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 1 pooled it
4.1field-weighted citation impact, top 5% 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

44 citing papers in PubMed, 1 synthesis or guideline pooled it, 69 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

7 authors at 2 institutions in 1 country.

Xing ShugangThe Key Laboratory of Pathobiology, Ministry of Education, the College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China.
Yang HongfaDepartment of Neurosurgery, The First Clinical Hospital, Jilin University, Changchun, Jilin 130021, P.R. China.
Liu JianpengDepartment of Neurosurgery, The First Clinical Hospital, Jilin University, Changchun, Jilin 130021, P.R. China.
Zheng XuDepartment of Neurosurgery, The First Clinical Hospital, Jilin University, Changchun, Jilin 130021, P.R. China.
Feng JingqiThe Key Laboratory of Pathobiology, Ministry of Education, the College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China.
Li XiangxiangThe Key Laboratory of Pathobiology, Ministry of Education, the College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China.
Li WeiThe Key Laboratory of Pathobiology, Ministry of Education, the College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China. Electronic address: liwei2006@jlu.edu.cn.
Jilin University · CNFirst Hospital of Jilin University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe prognostic value of SMAD4 in pancreatic cancer has been evaluated in several studies. However, the conclusions remain controversial. Therefore, we aimed to evaluate the association between SMAD4 expression and the outcome of pancreatic cancer patients by performing a meta-analysis.

methodsWe systematically searched for relevant studies evaluating the relationship between SMAD4 expression and the outcome of pancreatic cancer patients until May 2015. A meta-analysis was performed using STATA 12.0, and pooled hazard ratios (HRs) with 95% confidence intervals (CIs) were used to estimate the strength of the association between SMAD4 expression and the prognosis of pancreatic cancer patients.

resultsThe analysis included 1762 patients from 14 studies, with 1401 patients from 11 studies and 927 patients from 8 studies included in the univariate and multivariate analyses, respectively. Loss of SMAD4 expression was found to be significantly correlated with poor overall survival, with the combined HR (95% CI) of 1.20 (1.03-1.40). After adjusting for potential confounders using the Cox regression model, the pooled HR (95% CI) was 1.88 (1.31-2.70). In subgroup analysis, study region, number of patients, follow-up duration, and cutoff value were found to affect the significance of the association between loss of SMAD4 expression and poor prognosis. In addition, there was no evidence of publication bias, as suggested by Begg's and Egger's test.

conclusionsLoss of SMAD4 was associated with poor survival and was a negative prognostic indicator in patients with pancreatic cancer.

Identifiers

PMID26947875
PMCPMC4800056
OpenAlexW2289504874

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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.