Objective: This longitudinal study aimed to investigate: (1) the moderating role of formal social support for functional autonomy versus dependence on the relationship between pain intensity and pain-related disability among older adults with chronic pain, and (2) the mediating role of pain-related self-efficacy and pain-related fear in this moderation.
Methods:One hundred and seventy older adults (M age =78.0; SD=8.7) with chronic musculoskeletal pain participated in a 3-month prospective study, with three measurement moments. Participants filled out the Formal Social Support for Autonomy and Dependence in Pain Inventory, the Portuguese versions of the Brief Pain Inventory, the Pain Self-Efficacy Questionnaire and the Tampa Scale of Kinesiophobia.
Results: Using Structural Equation Modelling, it was found that perceived promotion of autonomy, at Time 1, moderated the relationship between pain intensity (T1) and pain-related disability (T2); this moderation was fully mediated by pain-related self-efficacy (T2). Perceived promotion of dependence was not a significant moderator.
Conclusions:These findings highlight the importance of social support for functional autonomy in buffering the impact of pain intensity on older adults' pain-related disability. Also, they clarify the role of pain-related selfefficacy in this effect. Implications for the development of intervention programs, with formal caregivers, to reduce the impact of chronic pain, on older adults' healthy ageing process, are discussed.