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).