Objective
To examine contextual (facility and community) and individual factors associated with self-care and mobility outcomes among Medicare hip fracture patients receiving inpatient rehabilitation.
Design
Retrospective cohort study of 3 linked data files: Inpatient Rehabilitation Facility-Patient Assessment Instrument, Provider of Services, and Area Health Resources. Multilevel modeling was used to examine the effects of contextual and individual factors on self-care and mobility outcomes.
Setting
Inpatient Rehabilitation Facilities (IRFs).
Participants
Medicare hip fracture patients (N=35,264) treated in IRFs (N = 1072) in 2012.
Interventions
Not applicable.
Main Outcome Measure(s)
Self-care (eating, grooming, bathing, upper and lower body dressing, and toileting) and mobility (walk/wheelchair and stairs) at discharge.
Results
Mean age was 81 years. Mean self-care and mobility scores at admission were 3.17 (SD=0.87) and 1.24, (SD=0.51), respectively; mean self-care and mobility scores at discharge were 5.03 (SD=1.09) and 3.31 (SD=1.54), respectively. Individual and contextual levels explained 44.4% and 21.6% of the variance in self-care at discharge and 19.5% and 1.9% of the variance in mobility at discharge, respectively. Individual level, age, race/ethnicity, cognitive and motor FIM scores at admission, and Tier comorbidities explained variance in self-care and mobility; gender and length of stay explained variance only in self-care. At the contextual level, facilities’ case mix (mean patient age, percent Non-Hispanic White, mean self-care score at admission) and structural characteristics (rural location, freestanding, and for-profit ownership) explained variance only in self-care; facilities’ case mix (mean patient age, percent Non-Hispanic White, percent living with social support, and mean mobility score at admission) explained variance in mobility. Community variables were non-significant.
Conclusion
Individual and facility factors were significant predictors of discharge self-care and mobility among Medicare hip fracture patients in IRFs. Findings may improve quality of IRF services to hip fracture patients and inform risk adjustment methods.