TABLE 2.

Point Estimates of Specificity and Sensitivity for the Primary and Secondary Outcomes

Severity Band	Dead at 30 d	Alive at 30 d	Sensitivity	Specificity	Likelihood Ratio
30-d mortality
Likely	17	57	0.567	0.792	2.72
Possible	11	186
Unlikely	2	31	0.933	0.133	0.59
Development of chronic critical illness
Likely	N/A	N/A	0.392	0.871	3.04
Possible	N/A	N/A
Unlikely	N/A	N/A	0.969	0.156	0.20
Discharge status
Likely	N/A	N/A	0.355	0.857	2.48
Possible	N/A	N/A
Unlikely	N/A	N/A	0.965	0.160	0.22
Secondary infection
Likely	N/A	N/A	0.382	0.840	2.38
Possible	N/A	N/A
Unlikely	N/A	N/A	1	0.160	0
Adverse clinical outcomes
Likely	N/A	N/A	0.345	0.934	5.27
Possible	N/A	N/A
Unlikely	N/A	N/A	0.969	0.221	0.14

N/A = not applicable.

Values represent the number of subjects in each likelihood distribution category.

Sensitivity and specificity were calculated by collapsing the likely and possible, and possible and unlikely categories, respectively.