Table 2.

Assessment of severity using the Hartwig severity scale

Severity level	Description	Number of ADRs at each severity level a
		Number	%
1	Required no change in treatment	322	22.3%
2	Drug dosing or frequency changed	66	4.6%
3	Required treatment or drug administration discontinued	1,046	72.3%
4	Resulted in patient transfer to higher level of care	12	0.8%
5	Caused permanent harm to patient or significant hemodynamic instability	1	0.1%
6	Directly or indirectly resulted in patient death	0	0%

^aDenominator was the total number of probable or definite ADRs. ADRs, adverse drug reactions.