The relationship between meaning in life and post-traumatic stress symptoms in US military personnel: A meta-analysis

•A meta-analytic review of the relationship between meaning in life and post-traumatic stress symptoms.•Results revealed a significant relationship with a moderate effect size.•Theoretical, research, and clinical implications with future directions are discussed. Subjective meaning in life has been theorized to play a critical role in the adjustment to traumatic events. However, its association with post-traumatic stress symptoms has not been quantitatively reviewed. Informed by Park's integrated meaning-making model and evidenced-based psychological treatments for post-traumatic stress disorder, the goals of this meta-analysis were to: (1) to determine the direction and magnitude of the association between meaning in life and post-traumatic stress symptoms; and (2) to examine potential moderators of this association (i.e., age, sex, race, marital status, type of trauma, and meaning in life conceptualization). CINAHL, Embase, PILOT, PsycINFO, PubMed, and Web of Science core collection databases were searched. A random-effects meta-analysis was conducted on 26 associations (N = 9,751). A significant, moderate, negative relationship was found between meaning in life and post-traumatic stress symptoms (r = -0.41; 95% CI: -0.47 to -0.35, k = 25). No significant moderators were detected. Findings suggest that meaning in life plays a crucial role in adjustment to traumatic events. Development and testing of randomized controlled trials to determine whether increases in meaning in life result in reductions of post-traumatic stress in US military personnel may facilitate ongoing efforts aimed at recovery from trauma.