Evidence map›Paper›PMID 29348549›Full record

ArticleScientific reports2018

Preoperative anemia in colorectal cancer: relationships with tumor characteristics, systemic inflammation, and survival.

Juha P Väyrynen, Anne Tuomisto, Sara A Väyrynen, Kai Klintrup, Toni Karhu, Jyrki Mäkelä, Karl-Heinz Herzig, Tuomo J Karttunen, Markus J Mäkinen

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed, 4 pooled it
5.2field-weighted citation impact, top 3% 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

66 citing papers in PubMed, 4 syntheses or guidelines pooled it, 128 citations in OpenAlex.

  1. Pooled it
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  3. Changes in fatigue in rectal cancer patients before and after therapy: a systematic review and meta-analysis.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2020
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  10. Anaemia, ethnicity, and cancer incidence: a retrospective cohort study in primary care.The British journal of general practice : the journal of the Royal College of General Practitioners · 2025
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6 more citing papers are in PubMed but not listed here.

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

9 authors at 3 institutions in 2 countries.

Juha P VäyrynenCancer and Translational Medicine Research Unit, University of Oulu, POB 5000, Oulu, 90014, Finland. juha.vayrynen@oulu.fi.
Anne TuomistoCancer and Translational Medicine Research Unit, University of Oulu, POB 5000, Oulu, 90014, Finland.
Sara A VäyrynenCancer and Translational Medicine Research Unit, University of Oulu, POB 5000, Oulu, 90014, Finland.
Kai KlintrupResearch Unit of Surgery, Anesthesia and Intensive Care, University of Oulu, POB 5000, Oulu, 90014, Finland.
Toni KarhuResearch Unit of Biomedicine and Biocenter of Oulu, University of Oulu, POB 5000, Oulu, 90014, Finland.
Jyrki MäkeläResearch Unit of Surgery, Anesthesia and Intensive Care, University of Oulu, POB 5000, Oulu, 90014, Finland.
Karl-Heinz HerzigResearch Unit of Biomedicine and Biocenter of Oulu, University of Oulu, POB 5000, Oulu, 90014, Finland.
Tuomo J KarttunenCancer and Translational Medicine Research Unit, University of Oulu, POB 5000, Oulu, 90014, Finland.
Markus J MäkinenCancer and Translational Medicine Research Unit, University of Oulu, POB 5000, Oulu, 90014, Finland.
University of Oulu · FIOulu University Hospital · FIPoznan University of Medical Sciences · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Anemia is common in colorectal cancer (CRC) but its relationships with tumor characteristics, systemic inflammation, and survival have not been well characterized. In this study, blood hemoglobin levels and erythrocyte mean corpuscular volume (MCV) levels were measured in two independent cohorts of 148 CRC patients and 208 CRC patients, and their correlation with patient and tumor characteristics, systemic inflammatory markers (modified Glasgow Prognostic Score: mGPS; serum levels of thirteen cytokines, C-reactive protein, albumin), and survival were analyzed. We found that anemia, most frequently normocytic, followed by microcytic, was present in 43% of the patients. Microcytic anemia was most commonly associated with proximal colon tumor location. Average MCV and blood hemoglobin levels were lower in tumors with high T-class. Low blood hemoglobin associated with systemic inflammation, including high mGPS and high serum levels of C-reactive protein and IL-8. Particularly, normocytic anemia associated with higher mGPS. Normocytic anemia associated with a tendency towards worse overall survival (multivariate hazard ratio 1.61, 95% confidence interval 1.07-2.42, p = 0.023; borderline statistical significance considering multiple hypothesis testing). In conclusion, anemia in CRC patients is most frequently normocytic. Proximal tumor location is associated with predominantly microcytic anemia and systemic inflammation is associated with normocytic anemia.

Indexed as

AgedAged, 80 and overAnemiaBiomarkersColorectal NeoplasmsCombined Modality TherapyFemaleHumansInflammationMaleMiddle AgedNeoplasm GradingNeoplasm MetastasisNeoplasm StagingPreoperative PeriodPrognosisBiomarkers

Identifiers

PMID29348549
PMCPMC5773501
OpenAlexW2784311715

What OpenQuestion holds

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LicenceCC BY
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.