Validity of predischarge measures for predicting time to harm in older adults
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BACKGROUND: Concern is often expressed about the ability of persons with cognitive impairment to manage safely after discharge home from hospital. Measures validated for predicting safety are required. PURPOSE: The purpose of this study was to determine whether two predischarge functional measures were valid for predicting time to incident of harm after discharge. METHOD: Participants (n = 47) were recruited from an inpatient rehabilitation unit. The Assessment of Motor and Process Skills (AMPS) and Cognitive Performance Test (CPT) were administered in hospital. Incident-of-harm outcome was measured by caregiver telephone questionnaire monthly for 6 months. FINDINGS: Compared with all independent variables, AMPS Process scale was the best single predictor of time to incident of harm (p = .01). CPT had a high specificity (91%) for identifying persons who did not have harm. IMPLICATIONS: Both AMPS and CPT demonstrated predictive validity for harm outcome over less predictive variables, such as comorbidities and activities-of-daily-living burden of care.
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