Evidence map›Paper›PMID 34380513›Full record

ArticleWorld journal of surgical oncology2021

Effect of the duration of the capecitabine regimen following colon cancer surgery in an elderly population: a retrospective cohort study.

Weiwei Chen, Hongmin Dong, Gang Wang, Juan Chen, Wenling Wang

Open access · goldAbstract read
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Article in World journal of surgical oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.4field-weighted citation impact, top 38% 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

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3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 6 citations in OpenAlex.

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4 · The record

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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 at 2 institutions in 1 country.

Weiwei ChenDepartment of Clinical Medicine, Guizhou Medical University, Guiyang, China.
Hongmin DongDepartment of Abdominal Oncology, Guizhou Province Cancer Hospital, Guiyang, China.
Gang WangDepartment of Abdominal Oncology, Guizhou Province Cancer Hospital, Guiyang, China.
Juan ChenDepartment of Clinical Medicine, Guizhou Medical University, Guiyang, China.
Wenling WangDepartment of Abdominal Oncology, Guizhou Province Cancer Hospital, Guiyang, China. wenlingwang@gmc.edu.cn.
Guiyang Medical University · CNGuizhou Cancer Hospital · CN

Funding

Guizhou Science and Technology Department [2018]5779Technology Plan Project of Guizhou Cancer Hospital YJ2019-021
6 · The paper itself

Abstract

backgroundOnly 50-70% of elderly colon cancer patients could complete the recommended 6 months of postoperative chemotherapy. It is unknown whether a shorter duration of postoperative capecitabine-alone chemotherapy would compromise survival. We thus conducted this study to analyze the association between postoperative chemotherapy duration of a capecitabine-alone regimen and cancer-specific survival (CSS) and disease-free survival (DFS) of surgery-treated elderly colon cancer patients.

methodsWe performed a retrospective cohort study of surgically treated stage III and high-risk stage II colon cancer patients aged ≥ 70 treated at two medical centers. Cox proportional hazard regression models were utilized to calculate crude and adjusted hazard ratios (HRs). The nonlinear relationship between postoperative chemotherapy duration and survival was analyzed through restricted cubic spline regression analysis, and the threshold effect was calculated by the two-piecewise Cox proportional hazard model.

resultsA total of 1217 surgery-treated colon cancer patients between August 1, 2013, and September 1, 2019, were reviewed, and 257 stage III and high-risk stage II patients aged ≥ 70 were enrolled. Postoperative chemotherapy with capecitabine was administered to 114 patients, and 143 patients only received surgery. As the duration of chemotherapy increased by 1 week, the risk of cancer-specific death was reduced by 11% (HR = 0.89, 95% confidence interval (CI) 0.82-0.96), and the risk of recurrence was reduced by 10% (HR = 0.90, 0.82-0.96). Nonlinearity exploration suggested a threshold effect of capecitabine duration on CSS in stage III disease. The HR for death was 0.79 (95% CI, 0.68-0.92) with duration ≤ 16 weeks and 1.34 (95% CI, 0.91-1.97) with duration > 16 weeks.

conclusionsThe postoperative capecitabine duration was significantly associated with a decrease in death risk and recurrence risk in elderly colon cancer patients. However, the threshold effect of capecitabine duration on survival suggests that short-term chemotherapy may improve survival in elderly stage III colon cancer patients.

Indexed as

Colonic NeoplasmsFluorouracilAgedAntineoplastic Combined Chemotherapy ProtocolsCapecitabineChemotherapy, AdjuvantDisease-Free SurvivalHumansNeoplasm Recurrence, LocalNeoplasm StagingPrognosisRetrospective StudiesCapecitabineFluorouracilCapecitabineColon cancerElderlyPostoperative chemotherapySurvival

Identifiers

PMID34380513
PMCPMC8359119
OpenAlexW3190836343

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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.