Performance status in cancer isn’t broken, but is it time for an upgrade? Check out our commentary with @ElisabethEdvar2 Guro Stene and Lee Jones in @ASCO_pubs on different tools to assess PS ascopubs.org/doi/full/10.12… THREAD 1948: Karnofsky et al used 3 criteria to evaluate nitrogen mustard efficacy: objective (decrease in lesion size), subjective (patient reported symptoms), and PS (i.e., patients’ ability to participate in activities of daily life) /2