Assessing the Impact of Crohn's Disease on Foot Health-Related Quality of Life: A Case-Control Study

Crohn's disease (CD) is primarily characterised by chronic gastrointestinal inflammation; however, its systemic nature frequently leads to musculoskeletal complications. Among these, clinically significant foot pathologies can impair mobility and negatively impact patients' overall quality of life. Despite their relevance, the specific influence of podiatric manifestations on health-related quality of life in individuals with CD remains insufficiently explored, underscoring a critical gap in current disease management. The aim of this study was to assess the extent to which foot-related health issues affect the quality of life in people living with CD compared with a healthy population. This multicenter observational case-control study was conducted across five provinces in southern Spain-Málaga, Granada, Jaén, Sevilla, and Cádiz-between January 2024 and February 2025. The study included 110 participants, evenly divided between individuals diagnosed with CD (n = 55) and healthy controls (n = 55), matched for age, sex, and body mass index. All participants completed the validated Spanish version of the Foot Health Status Questionnaire (SFHSQ), which assesses four foot-specific domains and four general health domains. Due to the non-normal distribution of the data, non-parametric statistical methods were applied, with the Mann-Whitney U test used to evaluate differences between groups. Participants with CD exhibited significantly lower scores across all domains of the SFHSQ, with the exception of the Footwear domain, which showed no statistically significant difference (p = 0.406). Compared with healthy controls, individuals in the CD group reported greater impairments in foot pain, foot function, general foot health, and in broader health-related domains including general health, physical activity, and social capacity (p < 0.01 for all). CD significantly compromises foot-related QoL. These results highlight the need to include podiatric evaluations as part of comprehensive, multidisciplinary care approaches aimed at enhancing mobility, functional capacity, and general well-being in affected individuals.