Table 4.

Order verification time (seconds) comparison with and without alerts. Pairwise comparisons of alert potential hazard level by verification time and alert display time (seconds). df = Degrees of freedom, SD = standard deviation.

Verification Time	Mean(SD)	Mean(SD)	t (df)	P
Medication Order
Alert vs No Alert	22.7(25)	9.0 (20)	5.2 (128)	<0.001
Potential Hazard Level
Very High vs High	35.6 (37)	20.2 (20)	1.8 (29)	0.08
Very High vs Medium	34.6 (37)	17.0 (16)	2.1 (33)	<0.05
Very High vs Low	34.6 (37)	11.0 (15)	2.1 (6)	0.08
High vs Medium	20.2 (20)	17.0 (16)	0.7 (37)	0.49
High vs Low	20.2 (20)	11.0 (15)	1.0 (2)	0.40
Medium vs Low	17.0 (16)	11.0 (15)	0.6 (3)	0.57
Alert Display Time	Mean(SD)	Mean(SD)	t (df)	P
Potential Hazard Level
Very High vs High	5.0 (6)	3.5 (2)	1.2 (26)	0.26
Very High vs Medium	5.0 (6)	4.2 (5)	0.5 (41)	0.61
Very High vs Low	5.0 (6)	1.7 (1)	2.5 (25)	<0.05
High vs Medium	3.5 (2)	4.2 (5)	–0.6 (25)	0.54
High vs Low	3.5 (2)	1.7 (1)	4.0 (7)	<0.05
Medium vs Low	4.2 (5)	1.7 (1)	2.3 (20)	<0.05