Table 2.

Types and potential severity of unintentional medication discrepancies in patients

Type of medication discrepancy	Number (%) of unintentional medication discrepancies	Potential severity of unintentional medication discrepancies (n,%)
		class 1*	class 2†	class3‡
Drug omission	129 (63.9)	43 (33.3)	53 (41.1)	33 (25.6)
Incorrect dose	49 (24.2)	32 (65.3)	13 (26.5)	4 (8.2)
Drug commission	17 (8.4)	2 (11.8)	6 (35.3)	9 (52.9)
Incorrect frequency	4 (2.0)	3 (75.0)	1 (25.0)	0 (0)
Drug substitution	3 (1.5)	1 (33.3)	1 (33.3)	1 (33.3)
Incorrect route	0	0 (0)	0 (0)	0 (0)
Total	202	81 (40.1)	74 (36.6)	47 (23.3)

*Discrepancy had no potential to result in discomfort or clinical deterioration.

†Discrepancy had the potential to result in moderate discomfort or clinical deterioration.

‡Discrepancy had the potential to result in severe discomfort or clinical deterioration.