Mediator role of experiential avoidance in relationship of perceived stress and alexithymia with mental health.

This cross-sectional study investigated the mediatory role of experiential avoidance in the relationship between perceived stress and alexithymia with mental health. We enrolled 440 students (age 18-30 years) at Kermanshah University of Medical Sciences through stratified random sampling method. The study tools were demographic checklist, GHQ-28, Toronto Alexithymia Scale-20 and Perceived Stress Scale. Data were analysed by SPSS-18 and AMOS-18 using Pearson correlation, hierarchical regression analysis and structural equation modelling (SEM). There was a significant positive correlation between perceived stress and experiential avoidance, and alexithymia and mental health problems (P < 0.001). SEM showed that the relationship between perceived stress and mental health problems by experiential avoidance was 0.19 [(β = 0.19; standard error (SE) = 0.09; P = 0.001], and the relationship between alexithymia and mental health problems through experiential avoidance was 0.09 (β = 0.09; SE = 0.43; P = 0.01). The mediatory role of experiential avoidance was confirmed in such a way that the effects of alexithymia and perceived stress decreased.