Objective: To evaluate the feasibility of retrospectively creating a data base useful in trauma systems evaluations. Materials and Methods: Records for 375 patients in both the Major Trauma Outcome Study and the Uniform Data System for Medical Rehabilitation were linked to create an injury-through-rehabilitation data base, including patients from four impairment groups: traumatic brain injury (TBI); spinal cord injury-paraplegic complete (SCI-PARA) and quadriplegic complete (SCI-QUAD); and hip fracture ((HIP-FX). Measurements and Blain Results: The average ages (25.1 years SCI-QUAD, 72.6 years HIP-PX); Injury Severity Score (10.2 HIP-FX, 31.7 SCI-PARA); Revised Trauma Score (5.9 TBI, 7.8 HIP-FX); and acute care lengths of stay (13.3 days HIP-FX, 24.2 days TBI) varied substantially over the four groups, On average, patients spent from approximately 20 days (HIP-FX) to nearly 100 days (SCI-QUAD) in rehabilitation, Functional gains during rehabilitation were primarily in motor skills, but TBI patients also made substantial cognitive gains, Nearly 90% of TBI and SCI patients were discharged to their homes; the percentage of HIP-FX patients discharged to their homes, however, was lower (74%), Across all impairment groups, more patients lived with their relatives after rather than before injury, The correlation between a summary Major Trauma Outcome Study-Functional Independence Measure assessed at acute rare discharge and the complete Uniform Data System for medical Rehabilitation-Functional Independence Measure assessed on admission to rehabilitation was significant for all study patients and for each impairment group except SCT-PARA. Conclusions: Linking records to create the study data base was arduous and could not be practically accomplished on a large scale or on a continuing basis, Because of the growing emphases on trauma system evaluations and outcomes beyond survival at acute care discharge, we recommend the routine inclusion of rehabilitation data in hospital-based trauma registries.