Table 4.

Summary of SDRNT1BIO baseline measures (2011-13)

Measure	Variables
Self-report questionnaire	Demographic characteristics Date of birth Sex Ethnicity Location when diabetes diagnosed
	Family History of diabetes Diabetes & Clinical History Date of diagnosis Other health conditions including specific questions on coeliac, rheumatoid and other auto-immune conditions
	Glucose and Insulin management Start of insulin therapy and current regime Date insulin injections started Current insulin dose Carbohydrate counting/exchange Glucose self-monitoring
	Diabetes acute crises Ketoacidosis Hypoglycaemia
	History of diabetes complications Kidney dialysis/transplant Laser therapy to back of the eye Amputation Complications affecting legs and/or feet Diabetic neuropathy diagnosis Michigan neuropathy scale Hospital Anxiety and Depression Scale (HADS) – 14 items
	Lifestyle Alcohol units per week Smoking habits (cigarettes/cigars/pipes) Current smoker, ex-smoker, non-smoker Frequency/number times a day smoked Age started to smoke
	Physical activity Intensity over previous week: vigorous, moderate, walking, sitting Duration of activity over previous 7 days Typical daily duration (hours and minutes)
Clinical measures	Sitting Blood pressure
	Height
	Weight
	Waist-hip ratio
	Bioimpedence
Biosamples stored	Blood – non-fasting (n=6005 persons with a sample) Serum, Plasma, whole blood in EDTA, whole blood in Paxgene tubes
	Single urine sample (n=5839 persons with a sample)
	Two urine samples (n=4902 persons with two or more samples)