Evidence map›Paper›PMID 32207578›Full record

ArticleBJS open2020

Overall risk and risk factors for metachronous peritoneal metastasis after colorectal cancer surgery: a nationwide cohort study.

S Ravn, U Heide-Jørgensen, C F Christiansen, V J Verwaal, R H Hagemann-Madsen, L H Iversen

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In one paragraph

Article in BJS open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 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

6 authors.

S RavnDepartment of Surgery, Aarhus University Hospital, Aarhus, Denmark.ORCID 0000-0002-3467-2249
U Heide-JørgensenDepartment of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark.
C F ChristiansenDepartment of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark.
V J VerwaalDepartment of Surgery, Aarhus University Hospital, Aarhus, Denmark.
R H Hagemann-MadsenDepartment of Pathology, Lillebaelt Hospital, Vejle, Denmark.
L H IversenDepartment of Surgery, Aarhus University Hospital, Aarhus, Denmark.

Funding

Manufacturer Einar Willumsen's Memorial FundProgram for Clinical Research Infrastructure (PROCRIN) established by the Lundbeck Foundation and the Novo Nordisk Foundation
6 · The paper itself

Abstract

backgroundThis study aimed to identify the cumulative incidence and risk factors of metachronous peritoneal metastasis (M-PM) from colorectal cancer in patients who had intended curative treatment.

methodsPatients with colorectal cancer were identified using the Danish Colorectal Cancer Group database for 2006-2015. The Danish Pathology Registry and the Danish National Patient Registry were used to identify M-PM to 2017. Risk factors were estimated by multivariable absolute risk regression, treating death and other cancers as competing risks. Overall risk and risk differences (RDs) were estimated at 1, 3 and 5 years.

resultsIn 22 586 patients with colorectal cancer, the overall risk of M-PM was reported to be 0·9 (95 per cent c.i. 0·8 to 1·0) per cent at 1 year, 1·9 (1·8 to 2·1) per cent at 3 years and 2·2 (2·0 to 2·4) per cent at 5 years. Advanced tumour category ((y)pT4 versus (y)pT1) increased the RD of both M-PM (2·9 (95 per cent c.i. 2·1 to 3·7) at 1 year and 6·0 (4·9 to 7·2) at 3 years) and lymph node involvement ((y)pN2 versus (y)pN0) (2·5 (1·8 to 3·2) at year and 4·3 (3·2 to 5·3) at 3 years). No further increase in risk was observed at 5 years. In a subanalysis, tumour-involved resection margin (R1 versus R0) was associated with M-PM with a RD of 3·9 (1·6 to 6·2) at 1 year and 5·9 (2·6 to 9·3) at 3 years.

conclusionThe overall risk of M-PM in patients with colorectal cancer is low, but is increased in advanced T and N status. Follow-up of at least 3 years after colorectal cancer surgery may be necessary, given the potential curative treatment of early diagnosed M-PM.

Indexed as

AdultAgedAged, 80 and overCohort StudiesColorectal NeoplasmsDatabases, FactualDenmarkFemaleHumansIncidenceLymphatic MetastasisLymph NodesMaleMiddle AgedMultivariate AnalysisPeritoneal Neoplasms

Identifiers

PMID32207578
PMCPMC7093782

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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.