TABLE 3.

Sensitivity and specificity for each cut-off point of the LACE index to predict a 30-day readmission after community-acquired pneumonia

LACE score	Sensitivity	Specificity
3	1.00	0.00
4	0.99	0.03
5	0.96	0.08
6	0.93	0.15
7	0.89	0.24
8	0.79	0.41
9	0.65	0.56
10	0.55	0.67
11	0.43	0.76
12	0.33	0.82
13	0.24	0.88
14	0.13	0.93
15	0.10	0.95
16	0.05	0.98
17	0.03	0.99
18	0.01	1.00
19	0.01	1.00

Each score identifies individuals in the high-risk group for hospital readmission after 30 days, for example, at 10, admissions with a score of ≥10 are identified as returning to hospital within 30 days by the LACE index. LACE: Length of stay, Acuity of admission, Comorbidities based on Charlson comorbidity score and number of emergency visits in the last 6 months.