In this prospective correlation study, 55 patients diagnosed with AIS were recruited. All were female and aged 10 years or above when a brace was prescribed, none had undergone prior treatment, and all had a Risser sign of 0-2 and a Cobb angle of 25-40 degree. The patients were examined in 3 consecutive visits with 4-6 months between each visit. The Chinese translated Trunk Appearance Perception Scale (TAPS) (Range 1-5), the Chinese translated Brace Questionnaires (BrQ) (Range 20-100) and the Chinese translated SRS-22 Questionnaires (Range 22-110) were used. In-brace Cobb angle, vertebral rotation and trunk listing were measured. Patients' compliance, in-brace correction and patients' QoL were assessed. To identify the relationship among these three areas, logistic regression model and generalized linear model were used.