Uda K, et al. - Via a retrospective cohort study of a total of 1,053 acute-care hospitals of patients aged ≥ 65 years with dementia at admission who underwent hip fracture surgery and received postoperative rehabilitation from April 1, 2014, to March 31, 2016 (n = 43,206), experts investigated the impacts of earlier, more frequent, and greater daily amounts of postoperative rehabilitation on activities of daily living (ADL) following hip fracture surgery in patients with dementia. In the multivariable linear regression analysis, postponed rehabilitation was significantly related to a lower Barthel index (BI) at discharge and a notable rise in the BI at discharge was noted in patients who underwent more frequent rehabilitation and greater daily amounts of rehabilitation. Thus, in patients with dementia, earlier, more frequent, and greater daily amounts of postoperative rehabilitation in acute-care hospitals were independently correlated with better recovery in ADL at discharge from acute-care hospitals following hip fracture surgery.