The Patients Satisfaction With Participation In Medical Decision-making Scale: Development, Reliability, And Validity

Objective:Developing a scale to survey patient's satisfaction with participation in medical decision-making.Methods:The theory construction was put forward on the theory of medical decision-making process and the ideal elements of medical decision-making. Related scales and suggestions from experts had been adapted before the item pool formed.With simple random sampling,209 surgery patients had been recruited in this study. Six methods had been used in items analyzing, such as t-test, correlation analysis, Cronbach coefficient, factor analysis. Retained items formed the Patient Satisfaction with Participation in Medical Decision-making Scale. The reliability and validity of the scale were also tested.Result:(1)The Patients Satisfaction with Participation in Medical Decision-making Scale was formed with 16 items.(2)Exploratory principal component analysis of the items indentified that the scale had five common factors and the cumulative variance was 69.44%. Five common factors belong to four domains:information, deliberation, decision, global satisfaction and confidence. The global satisfaction and confidence formed the global satisfaction sub-scale and the other three domains formed the decision-making process satisfaction subscale.(3)The test-retest, Cronbach'a coefficient and split-half reliability coefficient of this scale were 0.906,0.899,0.807.(4)The item-total correlation coefficient of the scale were 0.532-0.770, the domain-total correlation coefficient were 0.694-0.881, the domain-domain correlation coefficient were 0.393-0.693 respectively. Multiple linear regression analysis showed that satisfaction with decision-making process can explain 59% variance of the global satisfaction and confidence. (5)Score of collaborative role patients was statistically significant higher than that active and passive role patients(F=6.427, P=0.002); Score of non-malignant tumors patients was statistically significant higher than malignant tumors patients (t=3.118, P=0.046); Score of Less than or equal to 40-year-old patients was statistically significant higher than others (t=2.956, P=0.003); Score of patients from different section were significant differences (F= 4.705, P=0.001)Conclusions:The Patients Satisfaction with Participation in Medical Decision-making Scale was developed. After be tested in surgical patients, the reliability and validity of the scale are good and meet the psychometric standard.