Evidence map›Paper›PMID 33510279›Full record

Trial reportScientific reports2021

Low serum calcium is associated with higher long-term mortality in myocardial infarction patients from a population-based registry.

Timo Schmitz, Christian Thilo, Jakob Linseisen, Margit Heier, Annette Peters, Bernhard Kuch, Christa Meisinger

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

16 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
  2. Review
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  9. Review
  10. A New Predictive Equation for Estimating Serum Ionized Calcium Levels in Patients on Chronic Hemodialysis.Medical science monitor : international medical journal of experimental and clinical research · 2023
    Article
  11. Article
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  16. Review
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

7 authors at 3 institutions in 1 country.

Timo SchmitzMONIKA/KORA Myocardial Infarction Registry, University Hospital of Augsburg, Augsburg, Germany. t.schmitz@unika-t.de.
Christian ThiloDepartment of Cardiology, University Hospital of Augsburg, Augsburg, Germany.
Jakob LinseisenLMU München at UNIKA-T Augsburg, Augsburg, Germany.
Margit HeierKORA Study Centre, University Hospital of Augsburg, Augsburg, Germany.
Annette PetersInstitute of Epidemiology, Helmholtz Zentrum München, Oberschleißheim, Germany.
Bernhard KuchDepartment of Internal Medicine, Hospital Nördlingen, Nördlingen, Germany.
Christa MeisingerLMU München at UNIKA-T Augsburg, Augsburg, Germany.
University Hospital Augsburg · DELudwig-Maximilians-Universität München · DEGerman Center for Diabetes Research · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Calcium plays an essential role in physiology of the cardiovascular system. Aberrations from normal serum calcium levels are known to be associated with several cardiovascular diseases. Its possible role as a predictor for long-term mortality after acute myocardial infarction (AMI) is still uncertain. In this study, a total of 3732 patients (aged 25-74 years) with incident AMI surviving at least 28 days after AMI was included. The median follow-up time was 6.0 years. Admission total serum calcium levels were divided into quartiles. The Kaplan-Meier-Curve suggested a division of the follow up time in two different time periods. So, Cox regression models were calculated to assess association between admission serum calcium levels and all-cause long-term mortality with two observation periods: 28-2500 days and > 2500 days. The final model was adjusted for various comorbidities, clinical characteristics, in-hospital treatment and medication. The third quartile (normal-high Calcium levels) served as the reference group. The fully adjusted Cox-regression model shows significantly higher mortality risk for low serum calcium (quartile 1) within the timeframe 28-2500 days after the event (OR 1.53 [1.19-1.98]). The other groups did not differ significantly from each other. In the later observation period (from 2500 days until death or censoring) no more significant differences were seen between the four calcium quartiles. In summary, low serum calcium is an independent predictor of adverse outcome in the first 2500 days (about 7 years) after AMI. On later points in time this effect attenuates, so that no more significant differences can be observed.

Indexed as

Myocardial InfarctionRegistriesAdultAgedCalciumDisease-Free SurvivalFemaleHumansMaleMiddle AgedSurvival RateCalcium

Identifiers

PMID33510279
PMCPMC7843683
OpenAlexW3122243577

What OpenQuestion holds

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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.