Table 2.

Sequencing of electronic health record function adoption and relationship to meaningful use functions (in bold) (N=2794)

Function category	Specific function	Item homogeneity	Adoption rate	Rank
Clinical documentation	Patient demographics	0.71	0.85	1
Results	Radiology reports	0.78	0.85	2
Results	Laboratory reports	0.77	0.84	3
Results	Radiology images	0.56	0.80	4
Clinical documentation	Medication lists	0.56	0.62	5
Decision support	Drug-drug interaction alerts	0.55	0.62	6
Decision support	Drug–allergy alerts	0.56	0.62	7
Results	Diagnostic test results	0.49	0.61	8
Clinical documentation	Discharge summaries	0.51	0.60	9
Results	Consultant reports	0.45	0.58	10
Clinical documentation	Nursing assessments	0.52	0.58	11
Barcode	Laboratory specimens barcode	0.33	0.57	12
Barcode	Patient ID barcode	0.38	0.50	13
Decision support	Drug–laboratory interaction alerts	0.48	0.49	14
Results	Diagnostic test images	0.40	0.48	15
Decision support	Advanced directives	0.43	0.46	16
Clinical documentation	Drug dosing support	0.47	0.45	17
Clinical documentation	Problem lists	0.47	0.44	18
Barcode	Tracking pharmaceuticals barcode	0.36	0.34	19
Decision support	Clinical reminders	0.49	0.34	20
Barcode	Pharmaceutical administration barcode	0.37	0.32	21
CPOE	Radiology tests CPOE	0.41	0.32	22
CPOE	Laboratory tests CPOE	0.41	0.31	23
CPOE	Nursing orders CPOE	0.47	0.30	24
CPOE	Medications CPOE	0.47	0.27	25
Clinical documentation	Physician notes	0.40	0.27	26
Decision support	Clinical guidelines	0.50	0.26	27
CPOE	Consultation requests CPOE	0.54	0.23	28
	All	0.48

CPOE, computerized provider order entry; EHR, electronic health record.