Evidence map›Paper›PMID 34302234›Full record

ArticleInternational journal of clinical oncology2021

Preoperative iron status is a prognosis factor for stage II and III colorectal cancer.

Hiroshi Sawayama, Yuji Miyamoto, Kosuke Mima, Rikako Kato, Katsuhiro Ogawa, Yukiharu Hiyoshi, Mototsugu Shimokawa, Takahiko Akiyama, Yuki Kiyozumi, Shiro Iwagami and 4 more

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 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.4field-weighted citation impact, top 15% 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

13 citing papers in PubMed, 23 citations in OpenAlex.

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  11. Iron metabolism in colorectal cancer.Frontiers in oncology · 2023
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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

14 authors at 3 institutions in 1 country.

Hiroshi SawayamaDepartment of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan.
Yuji MiyamotoDepartment of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan.
Kosuke MimaDepartment of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan.
Rikako KatoDepartment of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan.
Katsuhiro OgawaDepartment of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan.
Yukiharu HiyoshiDepartment of Gastroenterological Surgery, Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31, Ariake, Koto, Tokyo, 135-8550, Japan.
Mototsugu ShimokawaDepartment of Biostatistics, Graduate School of Medicine, Yamaguchi University, Yamaguchi, Japan.
Takahiko AkiyamaDepartment of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan.
Yuki KiyozumiDepartment of Biostatistics, Graduate School of Medicine, Yamaguchi University, Yamaguchi, Japan.
Shiro IwagamiDepartment of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan.
Masaaki IwatsukiDepartment of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan.
Yoshifumi BabaDepartment of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan.
Naoya YoshidaDepartment of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan.
Hideo BabaDepartment of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan. hdobaba@kumamoto-u.ac.jp.
Kumamoto University · JPYamaguchi University · JPJapanese Foundation For Cancer Research · JP

Funding

Grant-in-Aid for Scientific Research 19K09199
6 · The paper itself

Abstract

backgroundIron deficiency anemia is represented in colorectal cancer (CRC) patients. Iron surplus load to increase non-transferrin bound iron (NTBI), and NTBI promotes cancer progression and influences microbiota. This study investigated whether preoperative serum iron status was associated with prognosis after CRC resection.

methodsWe evaluated preoperative iron and transferrin saturation (TSAT), which was calculated as iron divided by total iron-binding capacity, in 327 patients who underwent surgery for Stage II-III CRC. Fe < 60 μg/dl and TSAT > 40% were defined as low and high iron, respectively. The associations between iron status and overall survival (OS) were evaluated in univariate and multivariate Cox proportional hazards analysis.

resultsOf the 327 patients, 179 (54.7%), 124 (37.9%) and 24 (7.3%) had low, normal and high iron, respectively. In univariate analysis, low iron was associated with shorter OS (hazard ratio [HR] 2.821, 95% confidence interval [CI] 1.451-5.485, P = 0.002). High iron was also associated with shorter OS (HR 3.396, 95% CI 1.359-8.489, P = 0.009). In multivariate analysis, high age (P = 0.002), depth of invasion pT4 (P = 0.012), lymph-node metastasis presence (P = 0.035), low albumin (P = 0.011), low iron (HR 2.282, 95% CI 1.163-4.478, P = 0.016) and high iron (HR 3.757, 95% CI 1.486-9.494 P = 0.005) were independently associated with shorter OS. High iron was associated with the amount of intratumoral Fusobacterium nucleatum compared with normal iron.

conclusionBoth low and high preoperative iron in Stage II-III CRC patients were associated with unfavorable OS in univariate and multivariate analyses.

Indexed as

Colorectal NeoplasmsIronHumansLymphatic MetastasisPrognosisProportional Hazards ModelsIronColorectal cancerFusobacterium nucleatumIronPrognosisTransferrin saturation

Identifiers

PMID34302234
OpenAlexW3183536575

What OpenQuestion holds

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Read underepoch 390

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.