Description of single variables collected from the NDR
| NDR | |
| Variable category | Variable |
| Patient’s characteristics | Age (years), sex, height, weight, BMI |
| Diabetes characteristics | Type of diabetes, HbA1c (mmol/mol), debut year of diabetes, diabetes duration (years), age at onset |
| Diabetes treatment | Diet only, insulin, tablets, tablets and insulin |
| Method of insulin delivery | Insulin Pump Treatment (CSII), MDI |
| Blood pressure | Systolic blood pressure (mm Hg), diastolic blood pressure (mm Hg) |
| Cholesterol | Total cholesterol (mmol/L), LDL (mmol/L), HDL (mmol/L) |
| HbA1c | Triglycerides (mmol/L) |
| Renal function | Creatinine (µmol/L), eGFR (mL/min/1.73 m2) |
| Retinopathy | Retinopathy (yes/no) |
| Other treatments | Anti-hypertensive treatment, lipid-lowering treatment |
| Physical activity | Times per week of moderate to intense physical activity |
| Smoking status | Smoking (yes/no) |
| Albuminuria | Micro-albuminuria, macro-albuminuria (%) |
Variables are measured at least once per year for patients with diabetes type II and four times per year for patients with diabetes type I. If the patient has specific problems, variables may be recorded with higher frequency.
BMI, body mass index;CSII, Continuous Subcutaneous Insulin Infusion; eGFR, estimated glomerular filtration rate; HbA1c, haemoglobin subunit alpha 1c;HDL, high-density lipoprotein; LDL, low-density lipoprotein; MDI, multiple daily injections; NDR, National Diabetes Register.