Table 2.

Sensitivity and specificity for each cutoff point of the LACE index in COPD patients

LACE score	Sensitivity	Specificity
4	1.00	0.00
5	0.99	0.02
6	0.97	0.07
7	0.94	0.14
8	0.90	0.23
9	0.79	0.39
10	0.63	0.56
11	0.51	0.68
12	0.39	0.78
13	0.25	0.85
14	0.15	0.92
15	0.09	0.95
16	0.04	0.98
17	0.02	0.99
18	0.01	1.00
19	0.01	1.00

Note: Each score identifies individuals in the high-risk group for hospital readmission, for example, at 10, admissions with a score of ≥10 are identified as returning to hospital within 30 days by the LACE index.

Abbreviation: COPD, chronic obstructive pulmonary disease.