Evidence map›Paper›PMID 33596750›Full record

ArticleRenal failure2021

Iron, coronary artery calcification, and mortality in patients undergoing hemodialysis.

Sonoo Mizuiri, Yoshiko Nishizawa, Toshiki Doi, Kazuomi Yamashita, Kenichiro Shigemoto, Koji Usui, Michiko Arita, Takayuki Naito, Shigehiro Doi, Takao Masaki

Open access · goldAbstract read
In one paragraph

Article in Renal failure, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

14 citing papers in PubMed, 24 citations in OpenAlex.

  1. Article
  2. Observational
  3. Iron in Vascular Calcification: Pro-Calcific Agent or Protective Modulator?International journal of molecular sciences · 2025
    Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
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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

10 authors at 4 institutions in 2 countries.

Sonoo MizuiriDivision of Nephrology, Ichiyokai Harada Hospital, Hiroshima, Japan.
Yoshiko NishizawaDivision of Nephrology, Ichiyokai Harada Hospital, Hiroshima, Japan.
Toshiki DoiDivision of Nephrology, Ichiyokai Harada Hospital, Hiroshima, Japan.
Kazuomi YamashitaDivision of Nephrology, Ichiyokai Harada Hospital, Hiroshima, Japan.
Kenichiro ShigemotoDivision of Nephrology, Ichiyokai Harada Hospital, Hiroshima, Japan.
Koji UsuiIchiyokai Ichiyokai Clinic, Hiroshima, Japan.
Michiko AritaIciyokai East Clinic, Hiroshima, Japan.
Takayuki NaitoIchiyokai Yokogawa Clinic, Hiroshima, Japan.
Shigehiro DoiDepartment of Nephrology, Hiroshima University Hospital, Hiroshima, Japan.
Takao MasakiDepartment of Nephrology, Hiroshima University Hospital, Hiroshima, Japan.
IHI Corporation (United States) · USHiroshima University Hospital · JPKishokai Medical Corporation · JPYokogawa Electric (Japan) · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveA high coronary artery calcification score (CACS) may be associated with high mortality in patients undergoing hemodialysis (HD). Recently, effects of iron on vascular smooth muscle cell calcification have been described. We aimed to investigate the relationships between iron, CACS, and mortality in HD patients.

methodsWe studied 173 consecutive patients who were undergoing maintenance HD. Laboratory data and Agatston's CACS were obtained at baseline for two groups of patients: those with CACS ≥400 (

resultsThe median (interquartile range) age and duration of dialysis of the participants were 67 (60-75) years and 73 (37-138) months, respectively. Serum iron (Fe) and transferrin saturation (TSAT) levels were significantly lower in participants with CACS ≥400 than in those with CACS <400, although the serum ferritin concentration did not differ between the groups. TSAT ≥21% was significantly associated with CACS ≥400 (odds ratio 0.46,

conclusionWe have identified associations between iron, CACS, and mortality in HD patients. Lower TSAT was found to be an independent predictor of CACS ≥400, and iron deficiency (low TSAT, iron, or ferritin) was a significant predictor of 5-year all-cause mortality in HD patients.

Indexed as

AgedCause of DeathCoronary Artery DiseaseCoronary VesselsFemaleFerritinsHeart Disease Risk FactorsHumansIronMaleMiddle AgedRenal DialysisRenal Insufficiency, ChronicRetrospective StudiesSeverity of Illness IndexTransferrinFerritinsIronTransferrinCoronary artery calcificationhemodialysisironmortality

Identifiers

PMID33596750
PMCPMC7894440
OpenAlexW3131126374

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.