WHOQOL-BREF psychometric properties in a sample of smokers.
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.


METHODS
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<r<0.753; p<0.001), discriminant validation and criterion validation (0.554<r<0.778; p<0.001).


CONCLUSIONS
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.
Castro
Maria da Graça
Mda G
Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil. mgdc@uol.com.br
Oliveira
Margareth da Silva
Mda S
Miguel
Alessandra Cecília
AC
Araujo
Renata Brasil
RB
D000293:Adolescent; D000328:Adult; D001938:Brazil; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011594:Psychometrics; D011788:Quality of Life; D015203:Reproducibility of Results; D018434:Sickness Impact Profile; D012907:Smoking / Q000523:psychology*; D011795:Surveys and Questionnaires / Q000592:standards*; D014029:Tobacco Use Disorder / Q000175:diagnosis* / Q000523:psychology; D014944:World Health Organization