방법 비교

	회전근개 삶의 질 지수(Rotator Cuff Quality of Life Index)	전반적 변화 평가 척도
분야	스포츠의학	스포츠의학
계열	Process / pipeline	Process / pipeline
기원 연도	1998	1989
창시자	Rotator cuff outcome measurement literature consensus	Ruben Jaeschke, Jack Singer, Gordon H. Guyatt
유형	Patient self-report	Patient global perception
원전	Lippitt SB, Harryman DT, Matsen FA III. A practical tool for evaluating function: The Simple Shoulder Test. In: Matsen FA III, Fu FH, Hawkins RJ, eds. The Shoulder: A Balance of Mobility and Stability. Rosemont, IL: American Academy of Orthopaedic Surgeons; 1993.	Jaeschke R, Singer J, Guyatt GH. Measurement of health status. Ascertaining the minimal clinically important difference. Control Clin Trials. 1989;10(4):407-415.
별칭	RC-QoL, Rotator Cuff Quality of Life	GRC, Global Rating of Change
관련	4	4
요약	The Rotator Cuff Quality of Life Index (RC-QoL) is a rotator cuff-specific outcome instrument that measures symptom impact and functional limitations in patients with rotator cuff disease. Developed within rotator cuff treatment literature, the RC-QoL captures the physical, emotional, and social burden of rotator cuff pathology—pain, functional limitations, sleep disturbance, psychological distress—providing a patient-centered perspective on disease impact beyond mechanical function alone. The RC-QoL is widely used in rotator cuff repair and conservative management outcome studies.	The Global Rating of Change (GRC) Scale is a single-item, self-report outcome measure that asks patients to rate the overall change in their condition since baseline assessment. Developed by Jaeschke, Singer, and Guyatt in 1989 and published in Controlled Clinical Trials, the GRC Scale has become a fundamental method for anchor-based interpretation of change scores on clinical outcome measures, enabling clinicians and researchers to determine the minimal clinically important difference (MCID) in standardized scales.