TIMI Risk Index
TIMI Risk Index (Wiviott 2006; Morrow 2001): heart rate × (age/10)² / systolic BP; a higher index marks higher 30-day and long-term mortality across the published quintiles.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Heart rate
- 100 bpm
- Age
- 70 years
- Systolic blood pressure
- 120 mmHg
Result: TIMI Risk Index 40.8 — in the highest mortality-risk group (published top quintile ~20–26%).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Meaning
- A higher index marks higher mortality; the published quintiles span ~5% to ~26% long-term mortality.
What you enter
- Heart rate
- Age
- Systolic blood pressure
How this is calculated
- Formula
- TRI = heart rate × (age / 10)² / systolic BP. Note the age/10 squared term.
Wiviott SD, Morrow DA, Frederick PD, et al. Application of the TIMI Risk Index in patients with ST-elevation and non-ST-elevation myocardial infarction. J Am Coll Cardiol. 2006;47(8):1553-1558. Derivation: Morrow DA, et al. Lancet. 2001;358(9293):1571-1575. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.