Precision Performance Status Compared With ECOG Performance Status

This study compares consumer movement trackers to the Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) in monitoring cancer patient movement. The ECOG PS emphasizes a patient's ambulatory status (ability to walk around), and scores patients on a scale of 0-5: 0 (no restrictions), 1 (ambulatory), 2 (\< 50% of hours spent in bed, unable to carry out work activities), 3 (\> 50% of hours spent in bed, limited in self care), 4 (bedbound and gravely disabled) and 5 (deceased). Accurate assessment of a patient's PS is paramount in informing therapeutic decision-making, whether it be to predict response and tolerability to treatment or determine eligibility for clinical trials. However, the ECOG PS scale is observational, and therefore limited in its precision. Information gained in this study may help researchers learn if there is a better way to assess patient movement with computerized analysis tools using movement trackers.