the relationship between quality of life and personality traits in drug addicts

aim and background: the present study examined the predictability of quality of life (qol) based on personality traits and demographic characteristics of drug addicts. methods and materials: in the current descriptive, cross-sectional study, 200 individuals were randomly selected from addicts who referred to drug addiction treatment centers in tehran (iran). the world health organization quality of life scale-brief version (whoqol-bref) and the short version of cloninger's temperament and character inventory (tci) were completed by the participants. the collected data was analyzed using pearson's correlation coefficient and stepwise regression analysis. findings: personality traits of self-directedness, persistence, and employment status explained 33% of variance of the total qol score. self-directedness and persistence explained 16% of the variance of physical subscale of qol. self-directedness, reward dependence, and employment status explained 34% of the variance of psychological subscale of qol. self-directedness and employment status explained 20% and 26% of the variance of social and environmental subscales of qol, respectively. the mentioned factors could significantly predict qol. conclusions: improving self-directedness and reward dependence along with decreasing persistence and unemployment would reduce qol in drug addicts.