Understanding the impact of cognitive impairment and disease severity on activities of daily living in MS patients with different disability levels

Abstract

ObjectivePhysical impairments seen in people with multiple sclerosis (PwMS) affect the level of independence in activities of daily living (ADL). However, physical problems are insufficient to explain some debilitating conditions experienced by PwMS in daily life, especially in activities that require high cognitive ability. The aim of this study was to investigate the impact of cognitive impairment and disease severity on ADL in MS patients with different disability levels. MethodsSeventy PwMS were enrolled and divided into three groups according to their disability status. Cognitive functions were assessed with the Loewenstein Occupational Therapy Cognitive Assessment (LOTCA) and independence level in ADL was assessed with Functional Independence Measure (FIM). ResultsThere were significant differences between groups in FIM and FIM motor (FIMm) scores (p < 0.001), however no significant differences were found between groups in terms of FIM cognitive (FIMc) and LOTCA scores (p = 0.195 and p = 0.348 respectively). There was a moderate positive correlation between FIM and LOTCA total scores (p < 0.001) for overall sample. While there was a low correlation between LOTCA and FIMm (p = 0.008), high correlation was found between LOTCA and FIMc (p < 0.001). ConclusionAlthough most of the limitations in ADL can be explained by the severity of the disability in MS, the ability to perform ADL including cognitive skills was found to be similar for all disability levels. Cognitive problems should be taken into consideration as well as motor problems in the process of planning treatment programs for PwMS with any levels of disability.