Vitality, mental health and role-physical mediate the influence of coping on depressive symptoms and self-efficacy in patients with non-alcoholic fatty liver disease: A cross-sectional study

•Presence of diabetes or obesity comorbid with NAFLD predicts poorer mental health.•Significant fibrosis predicts lower self-efficacy in NAFLD patients.•NAFLD: Vitality mediates the impact of coping on depression.•Poor mental and physical health is related to worse self-efficacy in NAFLD patients.