Willingness to Pay (WTP) for a Brand Name Drug in Sâo Paulo, Brazil

Abstract

health, Mental health, Sexuality, and Couple Relationship, being the first dimension composed by 3 sub-dimensions: vasomotor symptoms, health, and Aging. Goodness-of-fit statistics were better than those of the extended version (chisquare/df= 2.130, AGFI= 0.859, PCFI= 0.919, RMSEA= 0.044). Internal consistency was good (Cronbach's alpha= 0.830) but slightly lower than that of the original scale. Correlations between extended and reduced subscales was high and significant in all cases (p< 0.001), ranging from r= 0.857 for Aging to r= 0.971 for Vasomotor symptoms. ConClusions: The Cervantes scale may be reduced to an abridged version of 14-item (Cervantes-SF) which maintains the original dimensional structure and psychometric properties. This version extends 45% of the original length, being faster to apply and making it specially suitable for routine medical practice.