1. Does enhanced meaning after meaning-centered group psychotherapy mediate a reduction in depressive symptoms in cancer survivors? A mediation analysis in the context of a randomized controlled trial.
- Author
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Holtmaat K, van der Spek N, Rijnhart JJM, Lissenberg-Witte B, Breitbart W, Cuijpers P, and Verdonck-de Leeuw IM
- Subjects
- Humans, Female, Male, Middle Aged, Mediation Analysis, Adult, Aged, Neoplasms psychology, Neoplasms therapy, Follow-Up Studies, Cancer Survivors psychology, Psychotherapy, Group methods, Depression etiology, Depression therapy, Depression psychology
- Abstract
Purpose: After meaning-centered group psychotherapy for cancer survivors (MCGP-CS), depressive symptoms tend to decrease. An enhanced sense of meaning may play a mediating role in this decrease. The aim of this study was to assess whether personal meaning mediates the relationship between MCGP-CS and depressive symptoms., Methods: Cancer survivors (n = 114) were randomly allocated to MCGP-CS or care as usual (CAU). The assessments were scheduled at baseline, postintervention, and at 3- and 6-month follow-up. Mediation models were estimated based on structural equation modeling. We computed the indirect effect of MCGP-CS on depressive symptoms at the 3-month follow-up through personal meaning, and other meaning-related mediators, measured postintervention., Results: A small but significant indirect effect of MCGP-CS on depressive symptoms at the 3-month follow-up was found through personal meaning postintervention (b = - 0.29, 95% bootstrap CI (- 0.63, - 0.03)). There were no significant indirect effects through the other meaning-related factors., Conclusions: This study tentatively supports the MCGP-CS working model in that an enhanced sense of meaning as a result of MCGP-CS mediates a reduction in depressive symptoms. Personal meaning mediated a small effect of MCGP-CS on depressive symptoms. The longitudinal mediating effect of personal meaning occurred within a time period of 3 months after MCGP-CS., Relevance: MCGP-CS is a psychological intervention that supports cancer survivors in regaining or enhancing a sense of meaning in their lives. This enhanced sense of meaning is a protective factor against depressive symptoms., Trial Registration: The RCT was registered in the Netherlands Trial Register (number NTR3571/NL3421) on August 10, 2012., Competing Interests: Declarations. The authors assert that all procedures contributing to this work comply with the ethical standards of the relevant national and institutional committees on human experimentation and with the Helsinki Declaration of 1975, as revised in 2008. Ethics approval: This RCT was approved by the Medical Ethics Committee of the Leiden University Medical Center (P10.241). Informed consent: Written informed consent was obtained from all individual participants included in the study. Conflict of interest: KH, JR, BLW and PC have nothing to disclose. NvdS and IVL reported grants from the Dutch Cancer Society during the conduction of the study. WB receives royalties from the sale of his manuals and textbook on meaning-centered psychotherapy from Oxford University Press. In addition, WP reports P30 CA008748 – Cancer Center Support Grant, PI Selwyn Vickers, MD., (© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
- Published
- 2024
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