Table 6.

Remaining Errors Preventable with Advanced CDS

Type of Error	Paper	E-prescribing
	N (%)	N (%)
Medication errors judged to be preventable with advanced clinical decision support
	1264	70
Inappropriate use of abbreviation	797 (63%)	--
Directions error	197 (15%)	36 (51%)
Length of treatment error	175 (14%)	20 (29%)
Dose error	27 (2%)	5 (7%)
Frequency error	24 (2%)	4 (5%)
Amount to be dispensed error	23 (2%)	3 (4%)
Other	21 (2%)	2 (3%)
Medication errors judged to be preventable with basic clinical decision support
	9434	43
Illegible	8898 (94%)	--
Dose error	121 (1%)	4 (9%)
Strength error	108 (1%)	1 (2%)
Frequency error	99 (1%)	15 (35%)
Amount to be dispensed error	79 (1%)	--
Directions error	72 (1%)	4 (9%)
Length of treatment error	57 (1%)	19 (44%)