RELIABILITY AND VALIDITY EVALUATION FOR A PATIENT-REPORTED SYNDROME SCALE- BLOOD-STASIS SYNDROME (PRS-BSS)
Author(s)
Yu L1, Zhang HY1, Yang KX2, Chen ZH2, Zhang MC2, Li Q2, Yuan dC2, Yang GL2
1Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang, China, 2Liaoning university of Traditional Chinese Medicine, Shenyang, China
OBJECTIVES: : We have established a self-rating scale for a patient-reported syndrome scale: blood-stasis syndrome(PRS-BSS). This study aims to evaluate reliability, validity of PRS-BSS in order to provide a clear quantitative tool for the patients with blood stasis. METHODS: A cross-sectional study was conducted for data collecting. 80 participants were recruited including 50 patients with blood stasis and 30 healthy ones.20 patients were randomly selected to fill the same scale again after 24 to 48 hours for retest realiability.The content mainly includes: the time required to complete inventory, basic demographic information such as general information. The internal consistency reliability was measured by Cronbach’s coefficients .The validity of the PRS-BSS were examined by content validity, construct validity and criterion validity.The content validity was measured by completion rate,ceiling and floor effect. The construct validity was mesured by factor analysis . RESULTS: The PRS-BSS had extremely good accepting rate and completion, 92.6% of the patients completed the questionnaire.The scale was composed of 4 dimensions (activity, sleep, mood, and aggravation), and 10 items. The retest reliabilities of summary and 4 dimensions are 0.954, 0.921, 0.877, 0.863, 0.941. The Cronbach’s coefficients were 0.829, 0.813, 0.614, 0.675, respectively. The correlation coefficient of each entry and the total score were higher than 0.4. KMO test results is 0.747, Bartlett ball test shows that P is less than 0.000, comply with the requirements for factor analysis. It showed 5 factors and the contribution rate reached 80%.The results showed that the structure is clear, consistent with the theoretical fraymework of setting. CONCLUSIONS: The final PRS-BSS is from the perspective of the patient's own, and easy to accept. It is proved to have a good reliability, validity in the clinical curative effect analysis.
Conference/Value in Health Info
2017-05, ISPOR 2017, Boston, MA, USA
Value in Health, Vol. 20, No. 5 (May 2017)
Code
PSY93
Topic
Patient-Centered Research
Topic Subcategory
Patient-reported Outcomes & Quality of Life Outcomes
Disease
Multiple Diseases, Systemic Disorders/Conditions