In-hospital low mobility, suboptimal continence care, and poor nutrition account for immediate and 1-month posthospitalization functional decline. These are potentially modifiable hospitalization risk factors for which practice and policy should be targeted in efforts to curb the posthospitalization functional decline trajectory.

BACKGROUND Recent efforts to prevent readmissions are increasingly focusing on early identification of high‐risk patients. OBJECTIVE To test whether information on functioning during hospitalization contributes to the ability to accurately identify older adults at high risk of readmission beyond their baseline risk. DESIGN Prospective cohort study. SETTING Internal medicine wards at 2 medical centers. PATIENTS Five hundred fifty‐nine community‐dwelling older adults (aged ≥70 years) discharged to their homes. MEASUREMENTS Data on unplanned 30‐day readmissions were retrieved from electronic health records. Data on at‐admission activities of daily living (ADL) and in‐hospital ADL decline were collected using validated questionnaires. Multivariate logistic regression was used to model the association between functioning and readmission controlling for known risk factors. RESULTS Higher in‐hospital ADL decline was significantly associated with readmission (odds ratio for each 10‐point decrease in ADL = 1.32, 95% confidence interval = 1.02‐1.72) but did not contribute to the overall discrimination of the model, as compared with the at‐admission data (C statistic = 0.81 for each model). Identifying high‐risk (10th highest percentile) patients by the at‐admission model did not detect 7/55 (12.7%) of patients who would have been categorized as high risk if risk identification was postponed to the discharge date and included data on in‐hospital ADL decline. CONCLUSIONS The study highlights the ability to identify patients at high risk for readmission already early in the index hospitalization using data on functioning, nutrition, chronic morbidity, and prior hospitalizations. Nonetheless, at‐discharge functional assessment can detect additional patients whose readmission risk changes during the index hospitalization. Journal of Hospital Medicine 2016;11:636–641. © 2016 Society of Hospital Medicine

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decline in SPMSQ score during acute hospitalisation has a detrimental effect on functional decline after acute hospitalisation, defined by incidence IADL dependency. This finding emphasises the need to identify cognitive decline during hospitalisation to allow timely intervention to prevent post-discharge functional decline in this population.