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Abstract Diabetic foot ulcers (DFUs) are one of the most prevalent and costly diabetes complications, associated with diminished quality of life and poor prognosis. Management of DFUs relies heavily on patients' foot self‐care behaviour. This study aims to explore psychological determinants of this important behaviour among primary care patients. A total of 186 patients with active DFUs self‐reported their illness perception, diabetes distress, self‐efficacy, and foot self‐care behaviour. Structural equation modelling was performed to examine interrelationships among measured variables. The final model demonstrated satisfactory fit, CFI = 0.933, TLI = 0.913, RMSEA = 0.050, SRMR = 0.073, χ 2 (95) = 132.256 ( p = 0.004), and explained 51.1% of the variance of foot self‐care. Illness threat perceptions (i.e., consequence, timeline, identity, concern, and emotion) had a direct positive effect on foot self‐care behaviours, but also indirectly decreased foot self‐care through increasing diabetes distress. Control perceptions (i.e., personal control, treatment control, and coherence) were not directly associated with foot self‐care behaviours, but indirectly improved foot self‐care by reducing diabetes distress and increasing foot care confidence. These findings suggest illness perceptions, diabetes distress, and self‐care confidence as modifiable predictors to be targeted in self‐management interventions for patients with DFUs.
Zhu et al. (Wed,) studied this question.