Evidence map›Paper›PMID 28943016›Full record

ArticleMayo Clinic proceedings2017

Serum Calcium and Risk of Sudden Cardiac Arrest in the General Population.

Hirad Yarmohammadi, Audrey Uy-Evanado, Kyndaron Reinier, Carmen Rusinaru, Harpriya Chugh, Jonathan Jui, Sumeet S Chugh

Open access · greenAbstract readComparative Study
In one paragraph

Article in Mayo Clinic proceedings, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
2.5field-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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 40 citations in OpenAlex.

  1. Pooled it
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  5. Upacicalcet: A Novel Intravenous Calcimimetic Agent for Patients Undergoing Hemodialysis With Secondary Hyperparathyroidism.Therapeutic apheresis and dialysis : official peer-reviewed journal of the International Society for Apheresis, the Japanese Society for Apheresis, the Japanese Society for Dialysis Therapy · 2026
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  7. Study of plasma essential element concentrations to explore markers of acute myocardial infarction.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 1 country.

Hirad YarmohammadiCardiovascular Division, Brigham and Women's Hospital, Boston, MA.
Audrey Uy-EvanadoThe Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA.
Kyndaron ReinierThe Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA.
Carmen RusinaruThe Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA.
Harpriya ChughThe Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA.
Jonathan JuiDepartment of Emergency Medicine, Oregon Health & Sciences University, Portland.
Sumeet S ChughThe Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA. Electronic address: Sumeet.Chugh@cshs.org.
Cedars-Sinai Medical Center · USBrigham and Women's Hospital · USOregon Health & Science University · US

Funding

Oregon Clinical and Translational Research Institute - The National COVID Cohort Collaborative (N3C)UL1TR002369 · NCATS · OREGON HEALTH & SCIENCE UNIVERSITY · PI Cynthia D Morris, Christopher G. Slatore · 2017 to 2026
$78.4M
Sudden Cardiac Death with Preserved Left Ventricular Ejection FractionR01HL126938 · NHLBI · CEDARS-SINAI MEDICAL CENTER · PI CHUGH, SUMEET S. · 2016 to 2019
$2.6M
Sudden Cardiac Death in Middle AgeR01HL122492 · NHLBI · CEDARS-SINAI MEDICAL CENTER · PI CHUGH, SUMEET S. · 2015 to 2018
$2.2M
NCATS NIH HHS UL1 TR002369NHLBI NIH HHS R01 HL122492NHLBI NIH HHS R01 HL126938
6 · The paper itself

Abstract

objectiveTo evaluate the potential role of low serum Ca levels in the occurrence of sudden cardiac arrest (SCA) in the community. PATIENTS AND

methodsWe compared 267 SCA cases [177 (66%) men] and 445 controls [314 (71%) men] from a large population-based study (catchment population ∼1 million individuals) in the US Northwest from February 1, 2002, through December 31, 2015. Patients were included if their age was 18 years or older with available creatinine clearance (CrCl) and serum electrolyte levels for analyses to enable adjustment for renal function. For cases, creatinine clearance and electrolyte levels were required to be measured within 90 days of the SCA event.

resultsCases of SCA had higher proportions of blacks [31 (12%) vs 14 (3%); P<.001], diabetes mellitus [122 (46%) vs 126 (28%); P<.001], and chronic kidney disease [102 (38%) vs 73 (16%); P<.001] than did controls. In multivariable logistic regression analysis, a 1-unit decrease in Ca levels was associated with a 1.6-fold increase in odds of SCA (odds ratio, 1.63; 95% CI, 1.06-2.51). Blood Ca levels lower than 8.95 mg/dL (to convert to mmol/L, multiply by 0.025) were associated with a 2.3-fold increase in odds of SCA as compared with levels higher than 9.55 mg/dL (odds ratio, 2.33; 95% CI, 1.17-4.61). Cases of SCA had significantly prolonged corrected QT intervals on the 12-lead electrocardiogram than did controls (465±37 ms vs 425±33 ms; P<.001).

conclusionLower serum Ca levels were independently associated with an increased risk of SCA in the community.

Indexed as

AdultAgedAged, 80 and overCalciumDeath, Sudden, CardiacFemaleHumansMaleMiddle AgedNorthwestern United StatesOdds RatioRisk FactorsYoung AdultCalcium

Identifiers

PMID28943016
PMCPMC5642050
OpenAlexW2758783031

What OpenQuestion holds

Textmetadata
LicenceTDM
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.