WHOQOL-BREF psychometric properties in a sample of smokers
Maria da Graça Castro1, Margareth da Silva Oliveira, Alessandra Cecília Miguel
1Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil. mgdc@uol.com.br
Objective:
To study the World Health Organization Quality of Life Instrument Bref psychometric properties in a sample of smokers. It is a self-administered instrument to evaluate quality of life. It contains 26 questions allocated to 4 domains: Social, Psychological, Physical and Environmental, there are 2 questions related to the Global domain.
Method:
The sample was formed by 276 tobacco users selected at random. The instruments applied were: World Health Organization Quality of Life Instrument Bref, Fagerström Test for Nicotine Dependence, and Medical Outcomes Study Short-Form 36-item. The statistical analysis was accomplished up by ANOVA, Cronbach's alpha, Pearson's Coefficient and Multiple Regression.
Results:
The World Health Organization Quality of Life Instrument Bref presented good reliability (Cronbach's alpha 0.9207), converging validation (0.382
Conclusion:
The World Health Organization Quality of Life Instrument Bref proved to be an adequate instrument, with a good level of reliability, being easily and quickly administered.
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