Implementation and Evaluation of a Computerized Reminder System in Ambulatory Care

We have developed and are testing computerized reminders for providers to determine whether automated systems can improve patient care in ambulatory settings. The reminder system is based on stepwise clinical protocols, and is entirely controlled by the provider. It does not require clinic use of computerized medical records. A randomized controlled trial will assess provider compliance with protocols, detection of serious pathology, and volume of service usage. Preliminary findings suggest that providers who receive reminders to work up a low hematocrit are more likely to order appropriate diagnostic tests than those not receiving reminders. Incremental costs for implementation of a reminder system are consistent with expenses for other new computer services at the study site. Provider use of the system varies greatly.