Evidence map›Paper›PMID 39496903›Full record

ArticleAnnals of surgical oncology2025

Lymph Node Yield and Long-Term Mortality Risk in Patients with Colon Cancer: A 20-Year Follow-Up National Study.

Velia Men, Praharsh Bahl, James Z Jin, Primal Parry Singh, Andrew G Hill

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Article in Annals of surgical oncology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed.

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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.

Velia MenFaculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand. qmen607@aucklanduni.ac.nz.ORCID http://orcid.org/0009-0006-6848-1391
Praharsh BahlSouth Auckland Clinical Campus, The University of Auckland, Auckland, New Zealand.
James Z JinSouth Auckland Clinical Campus, The University of Auckland, Auckland, New Zealand.
Primal Parry SinghSouth Auckland Clinical Campus, The University of Auckland, Auckland, New Zealand.
Andrew G HillSouth Auckland Clinical Campus, The University of Auckland, Auckland, New Zealand.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLymph node status is a well-established prognostic factor for colon cancer, but the optimal number of nodes for accurate staging remains unclear. This study explored the relationship between lymph node yield (LNY) and 5-year mortality rates in colon cancer patients in New Zealand.

methodsData from the New Zealand Cancer Registry were retrospectively analyzed for patients with TNM stage I, II, and III colon cancer between August 2003 and December 2021, with follow-up until January 2024. The primary outcome was the 5-year all-cause mortality rate, with LNY, age, sex, ethnicity, tumor site, district health board (DHB), and the number of positive nodes as covariates. Statistical analyses included univariate analysis, Cox regression modeling, and chi-squared tests.

resultsLNY was a significant predictor of 5-year mortality risk (hazard ratio 0.985, p < 0.0001), adjusted for age, sex, ethnicity, tumor site, and DHB. The strongest association between LNY and mortality rate was observed at 12 nodes. Further increases in LNY beyond 22 nodes did not lead to statistically significant differences in mortality rates. Lymph node ratio (LNR) was strongly associated with survival in stage III colon cancer, independent of LNY and the number of positive nodes.

conclusionsHigher LNY is significantly associated with reduced 5-year mortality rates in stage I-III colon cancer up to the 22-node mark. The strong correlation between LNR and mortality highlights its potential value for improving treatment planning in future clinical practice.

Indexed as

Colonic NeoplasmsLymph NodesAdultAgedAged, 80 and overFemaleFollow-Up StudiesHumansLymphatic MetastasisLymph Node ExcisionMaleMiddle AgedNeoplasm StagingNew ZealandPrognosisRegistriesColonic neoplasmsLymph node ratioLymph nodesNeoplasm stagingPrognosis

Identifiers

PMID39496903

What Socratic 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 Socratic graph.