Associations of foot ulceration with quality of life and psychosocial determinants among patients with diabetes; a case-control study

BACKGROUND: Patients with diabetic foot ulcers may have a lower quality of life. The objective was to compare the quality of life and its psychosocial determinants among patients with and without diabetic foot ulcers. METHODS: A case-control study was conducted in 2017 among patients with (cases) and without (controls) diabetic foot ulcers. The study tools included the World Health Organization’s Quality of Life scale (WHOQOL-BREF), the Hospital Anxiety and Depression (HAD) scale for anxiety and depression, the Patient Health Questionnaire Physical Symptoms (PHQ-15) for the severity of somatic symptoms, and the Summary of Diabetes Self-Care Activities (SDSCA) measure for self-management. RESULTS: A total of 209 patients (45 cases and 164 controls) were included. The average age was 56.2 ± 11.7 years, and 55.5% were female. The average scores of WHOQOL-BREF, PHQ-15, and SDSCA were 74.4% ± 12.1% and 8.1 ± 6.1, and 30.4 ± 21.8, respectively. The prevalence of anxiety and depression were 19.6 and 24.9%, respectively. SDSCA was the only psychosocial determinants higher in cases than controls (mean difference = 15.0, 95% CI = -8.0–22.0). The correlation coefficients of WHOQOL-BREF scores with anxiety, depression, and PHQ-15 scores in all patients were − 0.559 (p < 0.001), − 0.582 (p < 0.001), and − 0.532 (p < 0.001), respectively, with similar numbers in both groups. In multivariate analysis, only the association between quality of life and depression was maintained. CONCLUSION: Quality of life and psychosocial determinants with the exception of self-management were not associated with diabetic foot ulcers. Depressive symptoms were independent determinant of poor quality of life, irrespective of the status of diabetic foot ulcers.