ambulance

LACE Readmission Risk Scale

This assessment identifies patients who are at risk for readmission or death within thirty days of discharge

It uses four parameters:

  • “L”: the length of stay of the admission
  • “A”: the acuity of the admission (emergency or elective)
  • “C”: co-morbidities (the Charlson Co-Morbidity Index)
  • “E”: the number of Emergency Department visits within the last 6 months

LACE scores range from 1 to 19:

  • 0-4: Low probability of readmission or death within thirty days of discharge
  • 5-9: Moderate probability of readmission or death within thirty days of discharge
  • ≥10: High probability of readmission or death within thirty days of discharge
Length of Stay Days Score
1 1
2 2
3 3
4–6 4
7-13 5
14+ 7
Acuity of admission If patient was admitted via the ED 3
If patient was not admitted via the ED 0
Comorbidities Previous MI 1
Cerebrovascular disease 1
Peripheral vascular disease 1
Diabetes without complications 1
Congestive heart failure 2
Diabetes with end organ damage 2
Chronic pulmonary disease 2
Mild liver or renal disease 2
Any tumor (including lymphoma or leukemia) 2
Dementia 3
Connective tissue disease 3
AIDS 4
Moderate or severe liver or renal disease 4
Metastatic solid tumor 6
Emergency department visits How many times the patient has visited an emergency department in the six months prior to admission (not including the emergency department visit immediately preceding the current admission) Score is this number or 4, whichever is smaller.
Calculation Total When button is pressed, total the above scores and display it in a pop-up with one of the following:
0-4 Low probability of readmission or death within thirty days of discharge
5-9 Moderate probability of readmission or death within thirty days of discharge
≥10 High probability of readmission or death within thirty days of discharge