Table 1. Characteristics of the hospitals involved in this study.
Characteristics | Korea | Belgium | UK | USA |
---|---|---|---|---|
Period of time coverage | 4 mon (Sep.–Dec. 2014) | 1 yr (Jan.–Dec. 2011) | 1 yr (Jan.–Dec. 2011) | 3 yr (2009–2011) |
Hospital type | Tertiary teaching hospital | Tertiary teaching hospital | Tertiary teaching hospital | Tertiary teaching hospital |
Clinical setting | Inpatient and outpatient | Inpatient | Inpatient | Outpatient |
DDI rule knowledge base | National rules | Commercial rules | Self-developed rules | Self-developed rules |
Priority system for DDI rules | No levels (all rules are interruptive) | 6 levels (trigger alerts only for level 1 and 2) | 2 levels (hard stop, & interruptive) | 3 levels (hard stop, interruptive, & non-interrupted) |
DDI = drug–drug interaction.