LACE Index for 30-Day Readmission / Death
LACE index (van Walraven 2010): length of stay (banded), acute admission (3), Charlson comorbidity (banded), and ED visits in the prior 6 months (capped at 4); 30-day death / unplanned-readmission risk band.
Open the tool → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Length of stay
- 3 days
- Acute (emergent) admission
- No
- Charlson Comorbidity Index
- 0
- ED visits in the prior 6 months
- 0
Result: LACE 3 - low risk of 30-day death or unplanned readmission (a common banding; van Walraven 2010 gives an expected risk per point and defines no bands).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- 0-4
- Low risk of 30-day death or unplanned readmission.
- 5-9
- Moderate risk.
- >=10
- High risk.
- Bands
- A common convention. van Walraven 2010 gives an expected risk per point (2.0% at 0 to 43.7% at 19) and defines no bands. Its C term is a modified Charlson, not the 1987 weights.
What you enter
- Length of stay
- Acute (emergent) admission (3 points)
- Charlson Comorbidity Index (banded)
- ED visits in the prior 6 months (capped at 4 points)
How this is calculated
Citation
van Walraven C, Dhalla IA, Bell C, et al. Derivation and validation of an index to predict early death or unplanned readmission after discharge from hospital to the community. CMAJ. 2010;182(6):551-557. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.