Intended Use
This calculator is a clinical decision support tool intended for use by licensed healthcare professionals as one input among many in the clinical assessment of trauma patients. It does not replace clinical judgment, physical examination, imaging, or laboratory evaluation.
Regulatory Status
This tool has not been cleared or approved by the U.S. Food and Drug Administration (FDA). It is provided for educational and research purposes. It does not meet the definition of a medical device under 21 CFR 820 and is not intended for use as the sole basis for clinical decision-making.
Model Derivation & Limitations
- Population: Derived from 3.8 million adult trauma patients in the TQIP Participant Use File (2017–2022) and temporally validated on 1.6 million patients (2023–2024). Performance in non-TQIP populations, pediatric patients (<16 years), or international registries has not been assessed.
- Missing data: Approximately 34% of TQIP patients were excluded for missing vital signs or ISS. Excluded patients are likely more severely injured, meaning model performance may be overestimated relative to the complete trauma population.
- Prediction scope: The model predicts in-hospital mortality only. It does not predict long-term survival, functional outcome, disability, or quality of life.
- Population estimates: Predictions reflect average outcomes across large patient groups. Individual patient outcomes will vary. A predicted mortality of 10% means that, on average, 10 of 100 similar patients die—not that this specific patient has a 10% chance of death.
- Temporal drift: Model coefficients were locked in April 2026. As trauma care practices evolve, recalibration may be necessary. No automated updating mechanism is included.
- Transfer patients: Physiology at ED presentation may be altered by pre-hospital interventions. The model does not adjust for transfer status.
Data Privacy & Security
- All computation is local. No patient data is transmitted to any server. All calculations run entirely in your browser. No cookies, analytics, or tracking are used.
- No patient identifiers are collected. This tool requires only de-identified clinical parameters (injury severity, vitals, age, mechanism).
- Browser storage: This tool does not store any entered data. Closing or refreshing the page clears all inputs. If installed as a mobile app, no data persists between sessions.
- Content Security Policy: This page enforces a strict CSP that blocks external scripts, connections, and embedding. No data can be exfiltrated by injected code.
Liability & Disclaimer
This tool is provided "as is" without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose, and noninfringement. The authors shall not be liable for any claim, damages, or other liability arising from the use of this tool. The treating clinician retains full responsibility for all clinical decisions.
Citation
Dallal R, et al. A contemporary TQIP-derived mortality calculator outperforms TRISS: a temporal validation study of 5.4 million trauma patients. J Trauma Acute Care Surg. [Submitted, 2026].
Contact
For questions about the model, validation data, or institutional deployment: Contact