[A study of the frequency of cachexia and its associated factors in elderly patients with diabetes mellitus].

Objective: To investigate the frequency of cachexia and its associated factors in elderly diabetic patients.

Methods: The subjects were diabetic patients ≥65 years old attending the outpatient diabetes clinic of Ise Red Cross Hospital. Cachexia was evaluated as having three or more of the following: (1) muscle weakness, (2) fatigue, (3) anorexia, (4) decreased lean body mass, and (5) biochemical abnormalities. A logistic regression analysis was used to identify factors associated with cachexia, with the dependent variable as cachexia and explanatory variables as various variables (basic attributes, glucose-related parameters, comorbidities, and treatment).

Results: A total of 404 patients (233 males and 171 females) were included in the study. Twenty-two (9.4%) and twenty-two (12.8%) male and female patients, respectively, had cachexia. A logistic regression analysis showed that the HbA1c value (odds ratio [OR], 0.26,95% confidence interval [CI], 0.08-0.81; P=0.021) and cognitive and functional decline (OR, 11.81, 95% CI, 1.81-76.95; P = 0.010) were factors associated with cachexia. In women, type 1 diabetes (OR, 12.39, 95% CI, 2.33-65.87; P=0.003), the HbA1c value (OR, 1.71, 95% CI, 1.07-2.74; P=0.024), and insulin usage (OR, 0.14, 95% CI, 0.02-0.71; P=0.018) were cachexia-related factors.

Conclusions: The frequency of cachexia in elderly diabetic patients and its associated factors were identified. It is important to increase awareness of the risk of cachexia in elderly diabetic patients with poor glycemic control, cognitive and functional decline, type 1 diabetes mellitus, and insulin non-use.