Table 1.

TPARs for the outlier-based alerting framework and the different values of alert parameter α that were estimated based on the reviewers’ assessments and their standard errors (Std err). Also included is the alert rate for each corresponding alert threshold and TPAR. The alert rate estimates are based on 104,698 test patient instances leading to standard errors very close to zero for all alert rate entries; hence they are excluded from the table.

alert parameter	lab orders (22 models)			med orders (64 models)			combined (86 models)
	TPAR	Std err	Alert rate*	TPAR	Std err	Alert rate*	TPAR	Std err	Alert rate*
0.001	0.750	0.129	0.004	0.583	0.142	0.001	0.712	0.105	0.005
0.0025	0.643	0.121	0.011	0.603	0.090	0.003	0.634	0.096	0.014
0.005	0.657	0.110	0.022	0.523	0.085	0.006	0.627	0.087	0.028
0.01	0.482	0.103	0.044	0.437	0.068	0.013	0.472	0.081	0.056
0.015	0.445	0.124	0.066	0.416	0.059	0.019	0.439	0.096	0.085
0.025	0.469	0.119	0.109	0.440	0.063	0.032	0.462	0.093	0.141
0.04	0.603	0.089	0.175	0.464	0.062	0.051	0.572	0.070	0.226
0.06	0.612	0.089	0.263	0.424	0.063	0.077	0.569	0.070	0.339
0.08	0.608	0.101	0.350	0.319	0.056	0.102	0.542	0.079	0.453
0.1	0.608	0.101	0.438	0.309	0.054	0.128	0.520	0.073	0.566

^*Number of alerts per patient per day.