Patient-reported outcomes before amputation, at the casting visit before prosthesis fitting, 1, 6 and 12 months after prosthesis fitting: (a) EuroQol-5D (EQ-5D) health status scores before amputation (pre-amputation), at the casting visit before prosthesis fitting (pre-prosthesis) and at 1 month (1 mo), 6 months (6 mo) and 12 months (12 mo) follow-up after prosthesis fitting; (b) EQ-5D health status scores for patients separated by the reason for amputation at pre-amputation, pre-prosthesis, 1 mo, 6 mo and 12 mo for patients reported to be using their prosthesis; (c) Prosthetic Limb Users Survey of Mobility (PLUS-M) scores at pre-amputation, pre-prosthesis, 1 mo, 6 mo and 12 mo; (d) PLUS-M scores for patients separated by the reason for amputation at pre-amputation, pre-prosthesis, 1 mo, 6 mo, and, 12 mo for patients reported to be using their prosthesis.