The mediating role of rumination between fear of disease progression and sleep disturbance in melanoma patients: a dual-perspective analysis based on person-centered and variable-centered approaches

The results of this study underscore the critical role of rumination as a key psychological mechanism that mediates the impact of fear of disease progression on sleep quality among melanoma patients. From a clinical and psychological intervention standpoint, implementing cognitive-behavioral strategies aimed at reducing rumination within this high-risk subgroup may serve as an effective approach to mitigate fear levels and enhance overall sleep quality.