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CompletedNCT06574464BIGstdUpdated Aug 28, 2024

The BIG Score and In-Hospital Trauma Mortality

An observational study in Multiple Trauma and Injury Traumatic, sponsored by Haseki Training and Research Hospital. Completed at 1 site in Turkey. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-08-28.

Sponsored by Haseki Training and Research Hospital · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
563
Ages
18 Years and older
Sex
All
01

Study summary

This study investigated the efficacy and reliability of the BIG score, calculated based on the base deficit (BD), International Normalized Ratio (INR), and Glasgow coma scale (GCS), in comparison with the GCS, Revised trauma score (RTS), and Injury Severity Score (ISS) for predicting in-hospital mortality in adults with multiple-trauma presenting to the emergency department (ED).

Read the detailed description

This retrospective, observational, single-center study included 563 consecutive adults (≥ 18 years old) with multiple trauma who were admitted to our emergency department and hospitalized between January 2022 and December 2023. We assessed patient demographics (age and sex), vital signs on admission (systolic blood pressure [SBP, mmHg], heart rate [HR, beats/min], respiratory rate [RR, breaths/min], and peripheral oxygen saturation [SpO2, %]), complaints and symptoms on admission, anatomic region of injury, type of trauma (blunt or penetrating), mechanism of injury, BD measured in blood gases, INR, trauma scoring systems (e.g., GCS, RTS, ISS, and BIG score), and clinical outcomes (discharge, hospitalization, or death). The study cohort was divided into survivors and non-survivors. Survivors were defined as patients who were still alive after 28 days, while non-survivors had passed away within that time. The demographics, clinical characteristics, and trauma scoring systems were compared between survivors and non-survivors to determine the prognosis of patients with multiple trauma. Independent predictors of mortality were determined by multivariate logistic regression analysis of variables (demographic characteristics, clinical characteristics, and trauma scores) that differed significantly between survivors and non-survivors. Receiver operating characteristic (ROC) curve analysis was performed to establish cut-off values for the GCS, RTS, ISS, and BIG score, and then to assess the sensitivity and specificity of these scoring systems in terms of predicting in-hospital mortality.

02

Conditions studied

  • Multiple Trauma
  • Injury Traumatic

Keywords

  • BIG score
  • revised trauma score
  • injury severity score
  • mortality
  • multiple trauma
03

In context

Multiple Trauma

139 studies on the registry are indexed under Multiple Trauma; 32 are open to participants now.

This study's enrollment of 563 is above the median of 200 across 84 observational studies indexed under Multiple Trauma.

Browse Multiple Trauma studies →

Lead sponsor

Haseki Training and Research Hospital is the lead sponsor of 78 studies on the registry; 17 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

This retrospective, observational, single-center study included 563 consecutive adults (≥ 18 years old) with multiple trauma who were admitted to our Emergency Department and hospitalized between January 2022 and December 2023. Our

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • This study included 563 consecutive adults (≥ 18 years old) with multiple trauma who were admitted to our Emergency Department and hospitalized between January 2022 and December 2023.

Exclusion criteria

Exclusion Criteria:

  • Patients aged \< 18 years and adults who were discharged from the Emergency Department
  • Patients with non-traumatic injuries and those who presented to the Emergency Department for reasons other than trauma
  • Patients with missing Base Deficit and levels
  • Patients who had been admitted to the hospital more than 24 hours after the trauma
  • Patients with single trauma (e.g., isolated extremity trauma, isolated head injury, etc.)
  • Patients with chronic conditions such as chronic renal failure or hepatic, hematological, or neurological diseases
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

INR, PT and aPTT (clotting tests)

Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.

Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.

05

Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
563 participants (actual)
Patient registry
No

Groups and cohorts

  • Survivors

    Survivors were defined as patients who were still alive after 28 days of admission to the emergency department.

    Other: BIG SCORE · Other: Glasgow coma scale · Other: Revised Trauma Score · Other: Injury Severity Score

  • Non-survivors

    Non-survivors had passed away within 28 days of admission to the emergency department

    Other: BIG SCORE · Other: Glasgow coma scale · Other: Revised Trauma Score · Other: Injury Severity Score

Interventions

  • OtherBIG SCORE

    The trauma BIG score is used to predict posttraumatic injury severity and mortality. It was originally designed for the pediatric population. The score is calculated using the Base Deficit (BD), International Normalized Ratio (INR), and Glasgow Coma Scale (GCS) score on admission using the following formula: BIG score = (admission BD) + (2.5 × INR) + (15 - GCS).

  • OtherGlasgow coma scale

    The Glasgow Coma Scale is a neurological assessment tool used to evaluate the level of consciousness of a patient. It assesses three items: eye-opening (spontaneous, 4 points; to verbal stimuli, 3 points; to pain stimuli, 2 points; no response, 1 point); verbal responses (oriented, 5 points; confused but coherent speech, 4 points; inappropriate words, 3 points; incomprehensible speech, 2 points; no response, 1 point); and motor responses (obeys commands, 6 points; localizes pain, 5 points; withdraws from pain, 4 points; flexes in response to pain, 3 points; extends in response to pain, 2 points; no response, 1 point). The total GCS score is obtained by summing the scores for the three items, and it ranges from 3 to 15.

  • OtherRevised Trauma Score

    The Revised Trauma Score (RTS) is a physiological scoring system used to assess the severity of a traumatic injury. It considers three key parameters, Glasgow Coma Scale (GCS), Systolic Blood Pressure (SBP), and Respiratory Rate (RR), with a total score of 12 points. The study team retrospectively computed the RTS on admission by retrieving the GCS score, SBP, and RR per minute from the hospital's automated systems and archives.

  • OtherInjury Severity Score

    The Injury Severity Score (ISS) is an anatomical scoring system used to assess the severity of injuries sustained by trauma patients. It provides a numerical value based on the anatomical regions of the body affected by trauma and the severity of those injuries. The ISS is calculated by dividing the body into six regions: the head/neck, face, chest, abdomen/pelvis, extremities, and external. Each region is assigned a score ranging from 1 to 6, with 1 indicating minor injury and 6 indicating severe injury. The highest score from each region is squared and then the scores are summed to calculate the overall ISS.

06

What researchers measure

Primary outcomes

  1. Predictive ability of BIG score for 28-day mortality

    The investigators assessed the predictive ability of BIG score in determining 28-day mortality.

    Time frame: From admission to 28 days

  2. Predictive ability of Glasgow coma scale for 28-day mortality

    The investigators assessed the predictive ability of Glasgow coma scale in determining 28-day mortality.

    Time frame: From admission to 28 days

  3. Predictive ability of Revised Trauma Score for 28-day mortality

    The investigators assessed the predictive ability of Revised Trauma score in determining 28-day mortality.

    Time frame: From admission to 28 days

  4. Predictive ability of Injury Severity Score for 28-day mortality

    The investigators assessed the predictive ability of Injury Severity Score in determining 28-day mortality.

    Time frame: From admission to 28 days

07

Study locations

1 site
  • Haseki Training and Research Hospital
    Istanbul, Fatih 34265, Turkey
08

References and documents

Publications

  • Hoke MH, Usul E, Ozkan S. Comparison of Trauma Severity Scores (ISS, NISS, RTS, BIG Score, and TRISS) in Multiple Trauma Patients. J Trauma Nurs. 2021 Apr-Jun 01;28(2):100-106. doi: 10.1097/JTN.0000000000000567. PubMed 33667204 ↗
  • Borgman MA, Maegele M, Wade CE, Blackbourne LH, Spinella PC. Pediatric trauma BIG score: predicting mortality in children after military and civilian trauma. Pediatrics. 2011 Apr;127(4):e892-7. doi: 10.1542/peds.2010-2439. Epub 2011 Mar 21. PubMed 21422095 ↗
  • Brockamp T, Maegele M, Gaarder C, Goslings JC, Cohen MJ, Lefering R, Joosse P, Naess PA, Skaga NO, Groat T, Eaglestone S, Borgman MA, Spinella PC, Schreiber MA, Brohi K. Comparison of the predictive performance of the BIG, TRISS, and PS09 score in an adult trauma population derived from multiple international trauma registries. Crit Care. 2013 Jul 11;17(4):R134. doi: 10.1186/cc12813. PubMed 23844754 ↗
  • Park S, Wang IJ, Yeom SR, Park SW, Cho SJ, Yang WT, Tae W, Huh U, Song C, Kim Y, Park JH, Cho Y. Usefulness of the BIG Score in Predicting Massive Transfusion and In-Hospital Death in Adult Trauma Patients. Emerg Med Int. 2023 Oct 17;2023:5162050. doi: 10.1155/2023/5162050. eCollection 2023. PubMed 37881258 ↗

Individual participant data

Plan to share: No — Stored in non-publicly available Available on request

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Jan 2022 to primary completion in Dec 2023, 23 months.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 25, 2024
First posted
Aug 28, 2024
StartActual
Jan 1, 2022
Primary completionActual
Dec 1, 2023
CompletionActual
Jan 1, 2024
Last update
Aug 28, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 28, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06574464
Lead sponsor
Haseki Training and Research Hospital
Responsible party
Adem Az (Principal Investigator, Haseki Training and Research Hospital) — Principal investigator
First posted
Aug 28, 2024
Start date
Jan 1, 2022
Primary completion
Dec 1, 2023
Completion
Jan 1, 2024
Last update
Aug 28, 2024

Study contacts

Adem Az, M.D.
principal investigator · Haseki Training and Research Hospital

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Aug 2024. You cannot join it, but the record below documents what was studied.

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