No highly processed evidence has been identified that show that managing chronic conditions results in improved mental health outcomes, however primary studies suggest that providing disability aids for managing chronic conditions can result in psychological, social and mental health outcomes.
Hosman H & Jané-Llopis E (2005). The Evidence of Effective Interventions for Mental Health Promotion. In H Herrman, S Saxena & R Moodie (Eds). Promoting mental health: Concepts, emerging evidence and practice. WHO: Geneva.