Functional status, symptoms of depression, and the outcomes of hospitalization in community-dwelling elderly patients

OBJECTIVE: To assess the relationship between symptoms of depression at admission and postdischarge medical outcomes in hospitalized elderly patients. DESIGN: Prospective cohort study. METHODS: Patients screened for symptoms of depression at admission using the Geriatric Depression Scale underwent assessment 1 month after discharge to determine outcomes of hospitalization. SETTING: A 370-bed, acute care, community hospital. PATIENTS: A sample of 197 cognitively intact, community-dwelling elderly patients, aged 70 years and older, hospitalized with medical diagnoses, with expected lengths of stay of 48 hours or more. MAIN OUTCOME MEASURE: The Medical Outcomes Study Short-Form instrument was used to obtain data on 1-month postdischarge medical outcomes with respect to physical functioning, health status, and mental status. RESULTS: On admission, a total of 23.9% had symptoms of depression (Geriatric Depression Scale score, > or = 11) that were significantly related to preadmission functional status. In multivariate analyses, depressive symptoms at admission were significantly related to 1-month medical outcomes, independent of functional status. CONCLUSIONS: Findings suggest that depressive symptoms in hospitalized elderly may be reactive to physical disability and characterize a group of patients who have poorer functional status prior to admission. The effect of depressive symptoms on 1-month postdischarge medical outcomes, however, appears to be independent of and in addition to the effects of preadmission functional status.