Evidence map›Paper›PMID 34367951›Full record

ArticleFrontiers in oncology2021

A Novel Nomogram Based on Log Odds of Metastatic Lymph Nodes to Predict Overall Survival in Patients With Perihilar Cholangiocarcinoma After Surgery.

Wenbo Zou, Chunyu Zhu, Zizheng Wang, Xianglong Tan, Chenggang Li, Zhiming Zhao, Minggen Hu, Rong Liu

Open access · goldAbstract read
In one paragraph

Article in Frontiers in oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.8field-weighted citation impact, top 27% 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

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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

5 citing papers in PubMed, 8 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 4 institutions in 1 country.

Wenbo ZouMedical School of Chinese People's Liberation Army (PLA), Beijing, China.
Chunyu ZhuMedical School of Chinese People's Liberation Army (PLA), Beijing, China.
Zizheng WangFaculty of Hepato-Pancreato-Biliary Surgery, Chinese PLA General Hospital, Beijing, China.
Xianglong TanFaculty of Hepato-Pancreato-Biliary Surgery, Chinese PLA General Hospital, Beijing, China.
Chenggang LiFaculty of Hepato-Pancreato-Biliary Surgery, Chinese PLA General Hospital, Beijing, China.
Zhiming ZhaoFaculty of Hepato-Pancreato-Biliary Surgery, Chinese PLA General Hospital, Beijing, China.
Minggen HuMedical School of Chinese People's Liberation Army (PLA), Beijing, China.
Rong LiuMedical School of Chinese People's Liberation Army (PLA), Beijing, China.
Second Military Medical University · CNChinese PLA General Hospital · CNChinese People's Liberation Army · CNEastern Hepatobiliary Surgery Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundVarious lymph node staging strategies were reported to be significantly correlated with perihilar cholangiocarcinoma(pCCA) prognosis. This study aimed to evaluate their predictive abilities and construct an optimal model predicting overall survival (OS).

methodsPatients with pCCA were collected as the training cohort from the Surveillance, Epidemiology, and End Results (SEER) database. Four models were constructed, involving four LNs staging strategies. The optimal model for predicting OS was evaluated by calculation of the concordance index (C-index) and Akaike information criterion (AIC), and validated by using the area under curve (AUC) and calibration curves. The clinical benefits of nomogram were evaluated by decision curve analysis (DCA). A Chinese cohort was collected to be an external validation cohort.

resultsThere were 319 patients and 109 patients in the SEER database and Chinese cohort respectively. We developed an optimal model involving age, T stage, tumor size, LODDS, which showed better predictive accuracy than others. The C-index of the nomogram was 0.695, the time-dependent AUC exceeded 0.7 within 36 months which was significantly higher than that of the American Joint Committee on Cancer (AJCC) stage. The calibration curves for survival probability showed the nomogram prediction had good uniformity of the practical survival. The DCA curves exhibited our nomogram with higher clinical utility compared with the AJCC stage and single LOODS.

conclusionsLODDS is a strong independent prognostic factor, and the nomogram has a great ability to predict OS, which helps assist clinicians to conduct personalized clinical practice.

Indexed as

log odds of metastatic lymph nodesnomogramoverall survivalperihilar cholangiocarcinomaSEER

Identifiers

PMID34367951
PMCPMC8340771
OpenAlexW3183715048

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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.