Description of the hospitals that participated in the study
| Hospital | CPOE system | Source of system | Ability to locally configure CDS | Interoperability with other electronic records |
| Site 1 | System A | Commercial | Yes | Yes |
| Site 2 | System A | Commercial | Yes | Yes |
| Site 3 | System B | Commercial | Yes | No |
CDS, clinical decision support; CPOE, computerised physician order entry.