The role of cognition, depression, and awareness of deficit in predicting geriatric rehabilitation patients' IADL performance.

Fifty consecutive patients aged 60 years or older admitted to an inpatient rehabilitation program were studied to determine whether demographic, cognitive, affective, and awareness of deficit data had predictive value in determining performance-based Instrumental Activity of Daily Living (IADL) capacity. Correlational and hierarchical regression analysis found that cognition, awareness of deficit, and years of education accounted for 70% of IADL variance. Of particular note, cognition contributed unique variance above and beyond that accounted for by demographic variables. Additionally, the Awareness Interview (AI) contributed unique variance above and beyond that accounted for by demographic and cognitive variables. This study provides support for the assessment of cognitive functioning and awareness of deficit in rehabilitation settings to assist in outcome prediction.