The Barthel Index (BI) measures the extent to which somebody can function independently and has mobility in their activities of daily living (ADL) i.e. feeding, bathing, grooming, dressing, bowel control, bladder control, toileting, chair transfer, ambulation and stair climbing. Clients are assessed on admission for what they can achieve at that point and again at discharge, to measure the impact of the neuro rehabilitation therapies they have received. 

Barthel Admission and Discharge results for Stroke clients
December 2020 - December 2021

Barthel Admission and Discharge fields appear highly correlated:  0.81