Structural Relationship Among Mindfulness, Perceived Stress Level, and Psychological Dependence on Smoking

This study aimed to detect the mediating role of mindfulness in the relationship between psychological dependence on smoking and perceived stress levels. Fagerström Test for Nicotine Dependence, Mindful Attention Awareness Scale, Psychological Dependence to Smoking Scale, and Perceived Stress Level Scale were applied. To evaluate the indirect effects, regression analysis and the Sobel Z test were used. Of the 68 female (45%) and 83 male (55%) participants, Fagerström Test for Nicotine Dependence score (5.75 ± 2.51) was higher in past experiences of quitting for less than 1 month vs. longer quitting periods (p = .02). The mindfulness level was found to be negatively correlated with the Fagerström Test for Nicotine Dependence score (p = .216; r = −.101), perceived stress score (p < .001; r = −.296), and psychological dependence scores (p = .001; r = −.271). Regression analysis revealed that the perceived stress and mindfulness levels were predictors on psychological dependence (B = 0.204; t = 2.548; p = .012, and B = −0.236; t = −3.525; p = .005, respectively). The results of the Sobel test evaluating the mediator role of mindfulness in the relationship between perceived stress and psychological dependence were significant (Z value = 2.337, p = .019). These results highlight the role of mindfulness in smokers toward reducing associated perceived stress with psychological dependence.