Composition of hospital reporting performance indexes
| Index | Item values* | Survey items in the index |
| Supportive environment (sum of 2 items; takes values 0, 1, 2) | 0 or 1 | Always keeps identity private for reporters who identify themselves |
| 0 or 1 | Provides for anonymous reporting for all reporters | |
| Reporting by a range of staff (sum of 2 items; takes values 0, 1, 2) | 0 or 1 | At least some of its reports came from physicians |
| 0 or 1 | At least some reports were submitted by technicians, therapists, pharmacy staff, or other staff | |
| Timely distribution of reports (sum of 3 items; takes values 0, 1, 2, 3) | 0 or 1 | Distributes summary reports within the hospital |
| 0 or 1 | Produces summary reports on a monthly basis or more frequently | |
| 0 or 1 | Distributes reports within 2 weeks after the end of reporting period | |
| Review of reports by key departments and committees (sum of 2 items; takes values 0, 1, 2) | 0 or 1 | Always provides reports to all of hospital administration, nursing department, and medical administration |
| 0 or 1 | Discusses adverse events at both the hospital board or board committee and the medical executive committee |
* Each index is equal to the sum of the values for the items it includes. If responses to all items are 0, then the index is equal to 0; if responses to all items are 1, then the index is the maximum score.