The relationship between positive psychological capital, self-care ability, and quality of life in patients with mild cognitive impairment: A cross-sectional study.
BACKGROUND Mild cognitive impairment (MCI) severely impairs elders' quality of life. Positive psychological capital (PsyCap) and self-care ability are key protective factors, but most existing studies merely conduct linear analyses using total scale scores, ignoring multi-dimensional interactions. This study explored t...