Background: Foot self-care is important for preventing foot problems and maintaining one's foot health. Foot self-care requires competence to identify foot problems, knowledge and skills to care for those problems, and a willing attitude to care for one's foot health. However, there is major gap in the research evidence of foot self-care competence among patients with rheumatoid arthritis. This study aimed to analyse self-reported levels of competence in foot self-care among patients with rheumatoid arthritis.

Methods: A cross-sectional study design was used. Data were collected using a survey consisting of a self-reported competence in foot self-care competence scale (response options on 5-point Likert scale, higher values indicate higher competence) and background questions. The data were analysed with descriptive and inferential statistics and the psychometric properties of the scale using Rasch analysis.

Results: The participants' (n = 251) self-reported level of competence in foot self-care was moderate (mean 3.50, standard deviation [SD], 0.66). On the sum variable level, the highest mean score was for attitude towards foot self-care (3.98; SD, 0.69), followed by foot self-care knowledge (3.45; SD, 0.67) and experience providing foot self-care (3.38; SD, 0.69). Higher self-reported foot self-care knowledge and female sex were associated with higher self-reported competence in every sum variable.

Conclusions: Patients with rheumatoid arthritis evaluated their level of competence in foot self-care as moderate and some deficiencies were identified. These results indicate the importance of educating patients with rheumatoid arthritis about how to advance their foot self-care skills and knowledge. In the future, patients with rheumatoid arthritis could benefit from interventions that increase their knowledge of foot self-care together with practical examples, such as online videos, that demonstrate the practical conduct of foot self-care skills in daily life.