Table 1

Clinical and demographic characteristics of the cohort (n=3312)

Median (IQR)/percentage (n)
Individual characteristics
 Age (years) (n=3312)14.6 (10.4–26.4)
 Male (n=3312)57 (1879)
 Children (<17 years) (n=3312)59 (1946)
 Body mass index (n=2911)
  Children (z score, n=1676)*0.44 (−0.28–1.23)
  Adult (kg/m2, n=1235)24.1 (21.5–27.1)
 Overweight or obese (n=2911)35 (1033)
 White European ethnicity (n=3312)91 (3021)
 Other autoimmune disease present (n=3270)6 (204)
 Parent(s) with any diabetes (n=3261)15 (499)
 Sibling with any diabetes (n=3003)8 (229)
Diabetes presentation
 Clinical presentation
  Ketoacidosis (n=3242)42 (1348)
  Osmotic symptoms (n=3286)96 (3158)
  Weight loss (n=3251)85 (2753)
  Fatigue (n=3252)82 (2682)
 Symptom duration (weeks, n=3105)3 (2–6)
 Antibody positive (n=1778)85 (1510)
  • Sample sizes (n) are given for each variable if data collection was incomplete.

  • *The children’s B MI z-score expressed as a percentile (median (IQR)) was 67 % (39%– 89 %) (n = 1676).