Development of Patient-Reported Outcome Measures for Early Systemic Sclerosis Across Disease Subtypes.
OBJECTIVE Existing patient-reported outcome (PRO) measures for systemic sclerosis (SSc) have important limitations, including inadequate coverage of early disease and limited inclusion of diffuse cutaneous (dcSSc) and limited cutaneous (lcSSc) subtypes. This paper reports on the development of two PRO measures for earl...