Evidence map›Paper›PMID 27512331›Full record

ArticleJournal of emergencies, trauma, and shock

Extremes of shock index predicts death in trauma patients.

Stephen R Odom, Michael D Howell, Alok Gupta, George Silva, Charles H Cook, Daniel Talmor

Abstract read
In one paragraph

Article in Journal of emergencies, trauma, and shock. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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, 1 synthesis or guideline pooled it.

  1. Shock index as a predictor for mortality in trauma patients: a systematic review and meta-analysis.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2022
    Pooled it
  2. Factors associated with a positive shock index in the prehospital setting after major trauma.Scandinavian journal of trauma, resuscitation and emergency medicine · 2025
    Article
  3. Article
  4. Article
  5. Traumatic brain injury and variants of shock index.World journal of critical care medicine · 2024
    Article
  6. Role of glucose/potassium ratio and shock index in predicting mortality in patients with isolated thoracoabdominal blunt trauma.Ulusal travma ve acil cerrahi dergisi = Turkish journal of trauma & emergency surgery : TJTES · 2022
    Observational
  7. Article
  8. Observational
  9. Article
  10. Observational
  11. Article
  12. Shock index in the emergency department: utility and limitations.Open access emergency medicine : OAEM · 2019
    Article
  13. Article
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

6 authors.

Stephen R OdomDepartment of Surgery, Division of Acute Care Surgery, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, MA, USA.
Michael D HowellDivision of Pulmonary, Critical Care, and Sleep Medicine, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, MA, USA.
Alok GuptaDepartment of Surgery, Division of Acute Care Surgery, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, MA, USA.
George SilvaBeth Israel Deaconess Medical Center, Boston, MA, USA.
Charles H CookDepartment of Surgery, Division of Acute Care Surgery, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, MA, USA.
Daniel TalmorDepartment of Anesthesia, Critical Care, and Pain Medicine, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, MA, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

contextWe noted a bimodal relationship between mortality and shock index (SI), the ratio of heart rate to systolic blood pressure.

aimsTo determine if extremes of SI can predict mortality in trauma patients. SETTINGS AND DESIGNS: Retrospective evaluation of adult trauma patients at a tertiary care center from 2000 to 2012 in the United States. MATERIALS AND

methodsWe examined the SI in trauma patients and determined the adjusted mortality for patients with and without head injuries. STATISTICAL ANALYSIS USED: Descriptive statistics and multivariable logistic regression.

resultsSI values demonstrated a U-shaped relationship with mortality. Compared with patients with a SI between 0.5 and 0.7, patients with a SI of <0.3 had an odds ratio for death of 2.2 (95% confidence interval [CI] 21.2-4.1) after adjustment for age, Glasgow Coma score, and injury severity score while patients with SI >1.3 had an odds ratio of death of 3.1. (95% CI 1.6-5.9). Elevated SI is associated with increased mortality in patients with isolated torso injuries, and is associated with death at both low and high values in patients with head injury.

conclusionOur data indicate a bimodal relationship between SI and mortality in head injured patients that persists after correction for various co-factors. The distribution of mortality is different between head injured patients and patients without head injuries. Elevated SI predicts death in all trauma patients, but low SI values only predict death in head injured patients.

Indexed as

Mortality in traumashockshock index

Identifiers

PMID27512331
PMCPMC4960776

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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.