Joshi Sama, Reid M Carrington, Mindlis Irina
Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA.
Division of Geriatrics and Palliative Medicine, Weill Cornell Medicine, New York, New York, USA.
Clin Gerontol. 2025 Jan 22:1-12. doi: 10.1080/07317115.2025.2454977.
Arthritis is associated with poor quality of life (QOL) among older adults; and QOL is even worse among those with arthritis and multimorbidity (MM). Illness intrusiveness and perceived control have been identified in studies of single illnesses as modifiable mechanisms for QOL, but are understudied in older adults with arthritis and MM. We investigated the role of these potential mechanisms with QOL among older adults with arthritis and MM.
Secondary analysis of a sample of older adults aged ≥ 62 years with arthritis and MM ( = 228) using PROCESS macro for SPSS.
Participants were on average 72 years with 4 chronic illnesses, and high levels of pain intensity and illness intrusiveness. Perceived control was a significant mediator (but not moderator) in the relationship between illness intrusiveness and QOL, even after adjustment for pain intensity [β = -0.16, 95% CI (-0.13, -0.06)].
Lower levels of illness intrusiveness were associated with improved QOL through greater perceived control. Longitudinal studies are needed to further assess these mechanisms in older adults with arthritis and MM to adapt existing interventions.
Perceived control may be a target for future behavioral interventions to improve QOL in this population.
关节炎与老年人生活质量（QOL）较差相关；而在患有关节炎和多种疾病（MM）的人群中，生活质量更差。在单一疾病的研究中，疾病侵扰性和感知控制已被确定为生活质量的可调节机制，但在患有关节炎和MM的老年人中尚未得到充分研究。我们调查了这些潜在机制在患有关节炎和MM的老年人生活质量中的作用。
使用SPSS的PROCESS宏对≥62岁患有关节炎和MM的老年人样本（n = 228）进行二次分析。
参与者平均年龄为72岁，患有4种慢性疾病，疼痛强度和疾病侵扰性水平较高。即使在调整疼痛强度后，感知控制在疾病侵扰性与生活质量之间的关系中仍是一个显著的中介因素（但不是调节因素）[β = -0.16，95% CI（-0.13，-0.06）]。
较低水平的疾病侵扰性通过更高的感知控制与改善的生活质量相关。需要进行纵向研究，以进一步评估患有关节炎和MM的老年人中的这些机制，从而调整现有的干预措施。
感知控制可能是未来行为干预的目标，以改善该人群的生活质量。
