Evidence map›Paper›PMID 22146786›Full record

ArticleInternational journal of colorectal disease2012

Analysis of the seventh edition of American Joint Committee on colon cancer staging.

Yuan-Tzu Lan, Shung-Haur Yang, Shih-Ching Chang, Wen-Yih Liang, Anna Fen-Yau Li, Huann-Sheng Wang, Jeng-Kai Jiang, Wei-Shone Chen, Tzu-Chen Lin, Jen-Kou Lin

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Article in International journal of colorectal disease, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing 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

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

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  16. Stage II-III colon cancer: a comparison of survival calculators.Journal of gastrointestinal oncology · 2018
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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

10 authors.

Yuan-Tzu LanDivision of Colon and Rectal Surgery, Department of Surgery, Taipei Veterans General Hospital, No. 201, Sec. 2, ShiPai Rd, Beitou District, Taipei City, Taiwan 11217, Republic of China.
Shung-Haur Yang
Shih-Ching Chang
Wen-Yih Liang
Anna Fen-Yau Li
Huann-Sheng Wang
Jeng-Kai Jiang
Wei-Shone Chen
Tzu-Chen Lin
Jen-Kou Lin

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe seventh edition of the American Joint Committee on Cancer (AJCC) staging system has new substages for colon cancer. We used survival data from a single medical center to analyze this new AJCC edition.

methodsThe colon cancer database of Taipei Veterans General Hospital provided 1,865 patient records covering from 1999 to 2005. Survival rates were evaluated using the Kaplan-Meier method.

resultsThere were 268, 607, 561, and 421 patients in stages I, II, III, and IV disease with 5-year observed survival rates of 86.3%, 79.2%, 65.4%, and 12.8%, respectively. Survival rates were not significantly different between those with T4a and T4b disease (P = 0.806). The outcome of N1c disease was similar to N1a and N1b but worse than N0 (P = 0.004). Survival rates for M1a and M1b disease became different after reclassifying solely peritoneal seeding as M1a (P < 0.001). No discrepancy of outcomes between stage IIIA and stage IIB/IIC remained in the seventh edition.

conclusionsEvolution from the fifth to seventh edition of the AJCC staging system is successful in separating prognostic groups by substaging. But some issues remain unresolved, including the subdivision of T4, N1, and M1.

Indexed as

Neoplasm StagingAdenocarcinomaAdolescentAdultAgedAged, 80 and overColonColonic NeoplasmsDisease-Free SurvivalFemaleHumansKaplan-Meier EstimateMaleMiddle AgedPrognosisSurvival Rate

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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.