Evidence map›Paper›PMID 34012668›Full record

ArticleJournal of gastrointestinal oncology2021

External validation study of the 8

Jian Zhao, Wei Zhang, Jun Zhang, Wen-Jie Ma, Si-Yun Liu, Fu-Yu Li, Bin Song

Abstract read
In one paragraph

Article in Journal of gastrointestinal oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
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

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. 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.

Jian ZhaoDepartment of Radiology, West China Hospital, Sichuan University, Chengdu, China.
Wei ZhangDepartment of Radiology, West China Hospital, Sichuan University, Chengdu, China.
Jun ZhangDepartment of Radiology, West China Hospital, Sichuan University, Chengdu, China.
Wen-Jie MaDepartment of Biliary Surgery, West China Hospital, Sichuan University, Chengdu, China.
Si-Yun LiuGE Healthcare (China), Beijing, China.
Fu-Yu LiDepartment of Biliary Surgery, West China Hospital, Sichuan University, Chengdu, China.
Bin SongDepartment of Radiology, West China Hospital, Sichuan University, Chengdu, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSeveral changes have been made to the primary tumor (T) and lymph node (N) categories in the new 8

methodsA total of 335 patients who underwent curative-intent resection for pCCA between January 2010 and December 2018 were retrospectively enrolled. The overall survival (OS) of groups of patients was calculated using the Kaplan-Meier method. The log-rank test was used to compare OS between groups. The concordance index (C-index), Akaike information criteria (AIC), and time-dependent area under receiver operating characteristic (ROC) curve (AUC) were computed to evaluate the discriminatory power of the 8

resultsThe T category changed in 25 (7.5%) patients, the N category changed in 39 (11.6%) patients, and the tumor-node-metastasis (TNM) stage changed in 157 (46.9%) patients when the 8

conclusionsThe 8

Indexed as

American Joint Committee on Cancer (AJCC)curative-intent resectionoverall survivalPerihilar cholangiocarcinoma (pCCA)prognosis

Identifiers

PMID34012668
PMCPMC8107634

What OpenQuestion holds

Textmetadata
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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.