[Current status of post-traumatic growth among university students and its mediation pathway with post-traumatic stress symptoms].

Objective: To investigate the current status of post-traumatic growth (PTG) among university students, and to explore its mediation pathway with post-traumatic stress symptoms (PTSS). Methods: This study was a multicenter cross-sectional survey. From December 2024 to January 2025, using convenience sampling, 718 university students aged >18 years who met the inclusion criteria and had experienced stressful life events in the past year were selected from two comprehensive universities and one medical university in Chongqing as the study participants. A self-designed demographic questionnaire was used to collect demographic information of the university students, including gender, age, grade level, and family structure, etc. The adolescent self-rating life events checklist was used to assess university students' experiences of stressful life events and whether they were affected by these events. The post-traumatic stress disorder checklist-civilian version, the Chinese-Posttraumatic Growth Inventory, the 10-item Connor-Davidson resilience scale, and the Chinese PERMA-Profiler were used to assess university students' levels of PTSS, PTG, psychological resilience, and well-being, respectively. University students were classified according to demographic information and whether they were affected by stressful life events, and their total PTG scores were compared. Analysis of the correlation among PTG, PTSS, psychological resilience, and well-being in university students was carried out. Independent influencing factors for PTG among university students were identified. A structural equation model was constructed to analyze the mediating effects of well-being and psychological resilience on the transformation between PTSS and PTG. Results: Totally 718 questionnaires were distributed, and 647 valid questionnaires were returned, with a valid response rate of 90.1%. Among the university students, there were 584 males and 63 females, aged 18 to 27 years. There were 84 first-year students, 178 second-year students, 196 third-year students, and 189 fourth-year students. Among them, 582 students were from two-parent families, and 65 students were from single-parent families. Totally 102 students were affected by stressful life events, while 545 students were not affected by stressful life events. The stressful life events experienced by university students included 27 items, such as physical trauma, acute or serious illness, interpersonal tension, and academic pressure. The total scores of PTSS, PTG, psychological resilience, and well-being among university students were 18.00 (17.00, 27.00), 64.00 (41.00, 80.00), 30.00 (21.00, 39.00), and 118.00 (90.00, 135.00), respectively. Comparisons of total PTG scores among university students showed statistically significant differences by different age, family structure, and exposure to stressful life events (with Z values of -3.426, -2.285, and -3.693, respectively, P<0.05). The total PTG score and its subdimension scores of university students were significantly positively correlated with the total psychological resilience score, the total well-being score and its subdimension scores (with r values of 0.377 to 0.653, P<0.05). Age, family structure, whether being affected by stressful life events, well-being, and psychological resilience were independent influencing factors for PTG among university students (with β values of -0.144, 0.109, -0.151, 0.181, and 0.603, respectively, P<0.05). The constructed model was a multiple mediation model. Between PTSS and PTG transformation, both the independent mediating effect of well-being and the chain-mediating effects of well-being and psychological resilience were statistically significant (with β values of -0.140 and -0.287, respectively, 95% CI of -0.224 to -0.075 and -0.381 to -0.214, respectively, P<0.05), and the chain-mediating effect of well-being and psychological resilience was significantly higher than the independent mediating effect of well-being (β=0.146, with a 95% CI of 0.027 to 0.275, P<0.05). Conclusions: PTG among university students is at a moderate level. Well-being and psychological resilience play a chain-mediating role in the transformation between PTSS and PTG among university students.