Evidence map›Paper›PMID 24475216›Full record

ArticlePloS one2014

Lymph node ratio for postoperative staging of laryngeal squamous cell carcinoma with lymph node metastasis.

Yu-Long Wang, Duan-Shu Li, Yu Wang, Zhuo-Ying Wang, Qing-Hai Ji

Abstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
–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

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Prognostic value of lymph node ratio in laryngeal and hypopharyngeal squamous cell carcinoma: a systematic review and meta-analysis.Journal of otolaryngology - head & neck surgery = Le Journal d'oto-rhino-laryngologie et de chirurgie cervico-faciale · 2020
    Pooled it
  2. Factors associated with occult ipsilateral and contralateral nodal metastasis in resectable lateralized laryngeal and hypopharyngeal malignancies.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2026
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  6. Lymph node yield and lymph node density for elective level II-IV neck dissections in laryngeal squamous cell carcinoma patients.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2019
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  10. A critical evaluation of lymph node ratio in head and neck cancer.Virchows Archiv : an international journal of pathology · 2016
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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

5 authors.

Yu-Long WangDepartment of Head & Neck Surgery, Cancer Hospital, Fudan University, Shanghai, China ; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.
Duan-Shu LiDepartment of Head & Neck Surgery, Cancer Hospital, Fudan University, Shanghai, China ; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.
Yu WangDepartment of Head & Neck Surgery, Cancer Hospital, Fudan University, Shanghai, China ; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.
Zhuo-Ying WangDepartment of Head & Neck Surgery, Cancer Hospital, Fudan University, Shanghai, China ; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.
Qing-Hai JiDepartment of Head & Neck Surgery, Cancer Hospital, Fudan University, Shanghai, China ; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLymph node metastasis has a significant impact on laryngeal cancer prognosis. The role of lymph node ratio (LNR, ratio of metastatic to examined nodes) in the staging of laryngeal cancer was not reported. PATIENTS AND

methodsRecords of laryngeal cancer patients with lymph node involvement from Surveillance, Epidemiology, and End Results database (SEER, training set, N = 1963) and Fudan University Shanghai Cancer Center (FDSCC, validating set, N = 27) were analyzed for the prognostic value of LNR. Kaplan-Meier survival estimates, the Log-rank χ² test and Cox proportional hazards model were used for univariate and multivariate analysis. Optimal LNR cutoff points were identified by X-tile.

resultsOptimal LNR cutoff points classified patients into three risk groups R1 (≤0.09), R2 (0.09-0.20) and R3 (>0.20), corresponding to 5-year cause-specific survival and overall survival in SEER patients of 55.1%, 40.2%, 28.8% and 43.1%, 31.5%, 21.8%, 2-year disease free survival and disease specific survival in FDSCC patients of 74.1%, 62.5%, 50.0%, and 67.7%, 43.2%, 25.0%, respectively. R3 stratified more high risk patients than N3 with the same survival rate, and R classification clearly separated N2 patients to 3 risk groups and N1 patients to 2 risk groups (R1-2 and R3).

conclusionsR classification is a significant prognostic factor of laryngeal cancer and should be used as a complementary staging system of N classification.

Indexed as

Carcinoma, Squamous CellFemaleHumansKaplan-Meier EstimateLaryngeal NeoplasmsLymphatic MetastasisLymph NodesMaleNeoplasm StagingPostoperative PeriodProportional Hazards ModelsRisk Assessment

Identifiers

PMID24475216
PMCPMC3903600

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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.