INS and diabetes mellitus: Data regarding demographics (age, sex, BMI, marital status, education level, employment, working strength, monthly per capita income, type of medical insurance, distance to hospital), disease characteristics (disease duration, family history of diabetes, complications, comorbidities), treatment features (types of all prescribed daily, types of hypoglycaemic pills prescribed daily, current use of insulin and/or GLP-1, and frequent dosing of hypoglycaemic agents) were considered potential prognostic factors affecting medication adherence and were included in the LASSO regression.