Supplemental Material:
poststroke, aphasia, long-term disability, Stroke
STROKE

Stroke is the most common cause of long-term disability in Western societies (In this study, we present data from the POLAR (Predicting Outcomes of Language Rehabilitation in Aphasia) trial (Behavioral speech and language therapy (SLT) has eloquently been shown to be an effective approach to restoring language function in chronic aphasia (≥ 6 months poststroke; Considerable research effort has been undertaken to investigate personal factors associated with favorable response to SLT (e.g., As a result, prognostication is challenging in the clinical management of chronic aphasia (This study echoes this perspective. Specifically, in addition to describing in detail the methodology of the POLAR trial, we aimed to (a) determine therapy-induced change in confrontation naming and long-term maintenance of naming gains and (b) examine the extent to which aphasia severity, age, education, TPO, and cognitive reserve predict language gains (measured as change in confrontation naming) 1 week, 1 month, and 6 months posttherapy. The implications of the current findings are subsequently discussed in the context of the extant aphasia therapy literature.