Evidence map›Paper›PMID 33423148›Full record

ArticleInternational journal of clinical oncology2021

Survival benefit of adjuvant chemotherapy in elderly patients with colon cancer: a systematic review and meta-analysis.

Nobuaki Hoshino, Ryuhei Aoyama, Koya Hida

Abstract read
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In one paragraph

Article in International journal of clinical oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
0.5field-weighted citation impact, top 33% 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

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, 1 synthesis or guideline pooled it, 8 citations in OpenAlex.

  1. SEOM-GEMCAD-TTD clinical guidelines for the adjuvant treatment of colon cancer (2023).Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2024
    Guideline
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  3. Review
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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

3 authors at 1 institution in 1 country.

Nobuaki HoshinoDepartment of Surgery, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan. hoshinob@kuhp.kyoto-u.ac.jp.ORCID http://orcid.org/0000-0002-7171-8971
Ryuhei AoyamaDepartment of Surgery, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.
Koya HidaDepartment of Surgery, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.
Kyoto University · JP

Funding

The Mitsubishi Foundation 30327
6 · The paper itself

Abstract

backgroundAdjuvant chemotherapy after curative resection is established as a standard therapy for colon and rectal cancer. Although the efficacy of adjuvant chemotherapy has been shown by pooled analyses from randomized controlled trials, elderly patients still receive adjuvant chemotherapy less frequently than younger patients. In this systematic review and meta-analysis, we aimed to assess the survival benefit of adjuvant chemotherapy in elderly patients based on observational studies in which the elderly patients would likely be representative of those encountered in real-world clinical settings.

methodsA comprehensive literature search was conducted using PubMed, Scopus, and the Cochrane Central Register of Controlled Trials. Observational studies that investigated the survival benefit of adjuvant chemotherapy after curative resection in elderly patients (age ≥ 70 years) with colon or rectal cancer were included. The 5-year overall survival (OS) rate and OS were assessed. Risk of bias was assessed using the ROBINS-I tool.

resultsEleven studies in elderly patients with colon cancer were included. No relevant study was identified for rectal cancer. Elderly patients who received adjuvant chemotherapy had a significantly higher 5-year OS rate than those who did not (risk ratio 1.51, 95% confidence interval 1.29-1.76, P < 0.001). There was also a significant improvement in OS in elderly patients who received adjuvant chemotherapy (hazard ratio 0.59, 95% confidence interval 0.53-0.66, P < 0.001). The overall risk of bias was judged to be critical for both outcomes.

conclusionAdjuvant chemotherapy provides a survival benefit for elderly patients with colon cancer, although the quality of evidence is low.

Indexed as

Adjuvant chemotherapyColon cancerElderlyMeta-analysisSystematic review

Identifiers

PMID33423148
OpenAlexW3120697137

What OpenQuestion 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 OpenQuestion graph.