Introduction: Hospital-associated functional decline (HAFD) is recognized as a leading cause of adverse hospitalization outcomes, such as prolonged hospitalization, falls, readmission, and mortality. Since most patients hospitalized in internal medicine wards are older-adults, HAFD presents a major challenge to internal medicine.
Objectives: Describe functional trajectories of older-adults (aged ≥70 years) before, during and after acute hospitalization in internal-medicine units.
Methods: A prospective cohort study was conducted of 741 older-adults, hospitalized in two tertiary hospitals in Israel during the period 2009-2011. Basic functional status two weeks before admission, on-admission, at-discharge and one-month post-discharge was assessed using the modified Barthel Index (BI). Eight trajectories were identified.
Results: Two-thirds of the participants were completely or almost independent at the pre-morbid period. About a half of the older-adults were hospitalized with pre-admission functional decline, a quarter deteriorated or died during hospitalization, and one-third improved during hospitalization. Most of the older-adults who were stable in functioning at the pre-admission period (57.1%) remained stable during and post-hospitalization; however, about a third of them did not return to their pre-morbid functioning levels. Approximately half of those with pre-morbid functional decline experienced additional deterioration of at least 5 points on the BI scale. Pre-morbid instrumental functional status, comorbidity and depressive symptoms have been found to distinguish older adults with similar pre-admission and in-hospital functional trends.
Discussion: Eight functional trajectories describe the hospitalization period of older-adults in internal-medicine units. On-admission personal characteristics may be used to identify older-adults who are at risk of unwarranted hospitalization outcomes and thus allow intervention in the hospital-community interface.