Psychological factors associated with instrumental activities of daily living disability in older adults with moderate to severe knee osteoarthritis

Author:

Nanjo Keigo12,Ikeda Takashi134,Nagashio Naoko2,Sakai Tomoko1,Jinno Tetsuya5

Affiliation:

1. Department of Rehabilitation Medicine, Tokyo Medical and Dental University Graduate School, Tokyo, Japan

2. Department of Rehabilitation, Shonan Kamakura General Hospital, Kanagawa, Japan

3. School of Nursing and Rehabilitation Sciences, Showa University, Kanagawa, Japan

4. Research Institute for Sport and Exercise Sciences, Showa University, Kanagawa, Japan

5. Department of Orthopedic Surgery, Dokkyo Medical University Saitama Medical Center, Saitama, Japan

Abstract

BACKGROUND: The population of older adults with knee osteoarthritis (OA)-related disabilities is increasing globally. However, studies regarding instrumental activities of daily living (IADL) in older adults with knee OA are limited. OBJECTIVE: This study investigated the psychological factors associated with IADL disability in older adults with moderate to severe knee OA. METHODS: A cross-sectional study was conducted on 179 patients with knee OA aged ⩾ 65 years. The six-item short form of the Pain Catastrophizing Scale (PCS-6), the four-item short form of the Pain Self-Efficacy Questionnaire (PSEQ-4), and the fifteen-item Geriatric Depression Scale (GDS-15) were used to assess psychological factors. The participants were divided into IADL disabled and non-disabled groups. Binary logistic regression analyses were performed with the IADL disability status as the dependent variable. The PCS-6, PSEQ-4, and GDS-15 tools were included as independent variables in the logistic regression model. RESULTS: Of the 179 participants, 88 (49.1%) showed disability in conducting IADL. PSEQ-4 (odds ratio = 0.90, 95%; confidence interval = 0.82–0.99, p= 0.02) was a significant independent variable among all psychological factors. CONCLUSION: Even after controlling for cofounders, our study found that self-efficacy, assessed using the PSEQ-4, was related to IADL disability in older adults with moderate to severe knee OA.

Publisher

IOS Press

Subject

Rehabilitation,Physical Therapy, Sports Therapy and Rehabilitation,Orthopedics and Sports Medicine

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