Table 1:

Definitions and specifications of the eight candidate performance measures.

Measure Label	Description	Binary/Continuous	VR-12/PROMIS-29	Summary Measure	Physical/Mental HRQoL	Phase
PM1a	Stable or improved PCS	Binary	VR-12 or VR-36*	PCS	Physical	1, 2
PM1b	Stable or improved MCS	Binary	VR-12 or VR-36	MCS	Mental	1, 2
PM1c	Stable or improved PHS	Binary	PROMIS-29	PHS	Physical	2
PM1d	Stable or improved MHS	Binary	PROMIS-29	MHS	Mental	2
PM2a	Mean change in PCS	Continuous	VR-12 or VR-36	PCS	Physical	1, 2
PM2b	Mean change in MCS	Continuous	VR-12 or VR-36	MCS	Mental	1, 2
PM2c	Mean change in PHS	Continuous	PROMIS-29	PHS	Physical	2
PM2d	Mean change in MHS	Continuous	PROMIS-29	MHS	Mental	2

^*VR-12 in Phase 1, VR-36 in Phase 2. Both instruments produce equivalent summary measures (i.e., the PCS and MCS).

PM: Performance measure

PROMIS-29: Patient-Reported Outcomes Measurement Information System, 29-Item Profile Measure

VR-12: Veterans RAND 12-Item Short Form

VR-36: Veterans RAND 36-Item Survey

PCS: the physical health summary score of the VR-12 or the VR-36

MCS: the mental health summary score of the VR-12 or the VR-36

PHS: the physical health summary score of the PROMIS-29

MHS: the mental health summary score of the PROMIS-29