Results
The database was “rolled-out” in two principle stages, an early adoption stage by the cystic fibrosis user group (who had used the former pilot system) and a latter stage in which two other hospital groups (diabetes, clinical research center) converted to the new system without having experienced the interim pilot phase. All three groups are currently using the new system for their research-data needs. Data filters and business rules have substantially increased the reliability of the data available for use in characterizing various patient subgroups.