Table 1. Platelet transfusion ordering errors using the Inpatient Service 1 and Inpatient Service 2 order sets.

Baseline period (1/1/17–12/12/17)	Orders	Errors	Percentage errors	p -Value
Inpatient Service 1 order set (original order set)	1,249	39	3.1%
Inpatient Service 2 order set	740	9	1.2%	< 0.05 a
No order set	1,094	5	0.46%	< 0.001 a
Intervention period (12/13/17–6/30/18)
Inpatient Service 1 order set (revised order set)	897	3	0.3%	< 0.001 a
Inpatient Service 2 order set	335	2	0.6%	0.52 b
No order set	719	11	1.5%	< 0.05 c

^a p -Value as compared with Inpatient Service 1 baseline period (original order set).

^b p -Value as compared with Inpatient Service 2 baseline period.

^c p -Value as compared with Inpatient Service 1 intervention period (revised order set).