“…Potential confounders included age, sex, body mass index (Armstrong et al., 2011), length of hospital stay (Lambe et al., 2022), prehospital frailty level (Soukkio et al., 2018), femoral fracture site (Vrignaud et al., 2018), comorbidities (Zhu et al., 2022), walkability (Handoll et al., 2021), and residence, including home, a nursing home, or another hospital (Walsh et al., 2023). For this study, the outcome was the need for ADL assistance at discharge, and the predictor was the physical activity (Amaral Gomes et al., 2021) at the time of rehabilitation admission.…”