The Medical Outcome Study Short Form 36-Item Health Survey, Version 2 (SF-36) is a self-administered instrument that measures the impact of disease on overall quality of life and consists of 36 questions in eight domains (physical function, pain, general and mental health, vitality, social function, physical and emotional health).
The summary physical health score included the following subscales: physical functioning, role-physical, bodily pain, and general health. The summary mental health score included the following subscales: vitality, social functioning, role-emotional, and mental health.
Each score ranges from 0 to 100 where higher scores indicate a better quality of life. A positive change from Baseline score indicates an improvement.