A cross-sectional study of glycaemic control, complications and psychosocial functioning among 18- to 35-year-old adults with Type 1 diabetes

Aims To describe the level of glycaemic control, complications and psychosocial functioning and the relationships between these variables in the under‐researched group of younger adults with Type 1 diabetes. Methods Local electronic health records provided data on age, gender, disease duration, HbA1c and complications for 710 younger adults (18–35 years) with Type 1 diabetes. A questionnaire with wide‐ranging psychometric scales was used to measure various aspects of psychosocial functioning: the burden of diabetes‐related problems, well‐being, self‐esteem, perceived competence in managing diabetes, perceived autonomy support from health professionals and self‐management motivations. Furthermore, patients reported weekly self‐monitored blood glucose measurements and insulin administration. Associations between HbA1c, complication and psychosocial indicators were tested using linear and logistic regression models, adjusted stepwise for confounders, including age, gender, diabetes duration, continuous subcutaneous insulin infusion, smoking and BMI. Results In total, 406 (57%) participants responded. The responders had a mean age of 27.1 (5.1) years, a mean diabetes duration of 13.5 (7.9) years and an HbA1c of 66 mmol/mol (8.2%), with similar values for both genders (P = 0.87). Complications were observed among women more commonly than among men (31.6 vs. 18.8%, P