Change in quality of life as measured by the Stroke-Specific Quality of Life scale. Study participants must respond to each question of the SS-QOL with reference to the past week. It is a self-report scale containing 49 items in 12 domains and subscales which include: Energy, Upper extremity function, Work/Productivity, Mood, Self-care, Social roles, Family roles, Vision, Language, Thinking and Personality. Patients must respond to each item using the corresponding response set as indicated on 5 point scale. Higher scores indicate better functioning. The SS-QOL yields both domain scores and an overall SS-QOL summary score. The domain scores are unweighted averages of the associated items while the summary score is an unweighted average of all twelve domain scores.