The SF-6D Brazil questionnaire: generation models and applications in health economics.
OBJECTIVE
Compare the preference measures derived from the SF-36, based on the two Brazilian versions of the Short Form 6 Dimensions questionnaire-Brazil (SF-6D Brazil).


METHODS
Observational and transversal study. The following quality of life assessment instruments were applied: HAQ, SF-36, EQ-5D and SF-6D (1998 and 2002 versions). Descriptive statistics and correlation coefficients were used for data analysis.


RESULTS
The study assessed 200 patients suffering from rheumatoid arthritis, with a mean age of 49.22 years, mean time with the disease of 11.16 years and mean HAQ score of 1.02. Preferences measured by the two versions of the SF-6D and by the EQ-5D showed significant correlations with one another, and Pearson coefficients ranged from 0.59 to 0.88 (p<0.01).


CONCLUSIONS
The most current version of the SF-6D, based on the 2002 model, was found to be valid when compared to the version initially validated to Brazil and is a questionnaire alternative to assess preferences in economic analyses carried out in health care.
Campolina
Alessandro Gonçalves
AG
Universidade Federal de São Paulo, São Paulo, SP.
Bortoluzzo
Adriana Bruscato
AB
Ferraz
Marcos Bosi
MB
Ciconelli
Rozana Mesquita
RM
D000293:Adolescent; D000328:Adult; D000368:Aged; D000465:Algorithms; D001172:Arthritis, Rheumatoid / Q000523:psychology*; D001938:Brazil; D003430:Cross-Sectional Studies; D004470:Economics, Medical; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011788:Quality of Life / Q000523:psychology*; D018434:Sickness Impact Profile; D011795:Surveys and Questionnaires; D055815:Young Adult