Table 1.
Characteristics of individuals included in the analysis
| Control subjects | Individuals with T1D diagnosed at <7 years | Individuals with T1D diagnosed at 7–13 years | Individuals with T1D diagnosed at ≥13 years | |
|---|---|---|---|---|
| n | 18,485 | 3,121 | 3,757 | 1,708 |
| Age at diagnosis (years), median (IQR) [range] | NA | 4 (2, 5) [0, 6.9] | 10 (8, 11) [7, 12.9] | 15 (13, 21) [13, 50.3] |
| Sex (female) | 9,771 (52.9) | 1,528 (49.0) | 1,968 (52.4) | 743 (43.5) |
| Asia-Pacific | 925 (5) | 28 (0.9) | 26 (0.7) | 52 (3.0) |
| Central Europe | 1,681 (9.1) | 52 (1.7) | 63 (1.7) | 156 (9.1) |
| Finland | 2,824 (15.3) | 100 (3.2) | 152 (4.0) | 434 (25.4) |
| Northern Ireland | 478 (2.6) | 222 (7.1) | 248 (6.6) | 35 (2.0) |
| U.K. | 10,593 (57.3) | 2,662 (85.3) | 3,206 (85.3) | 923 (54) |
| U.S. | 1,984 (10.7) | 57 (1.8) | 62 (1.7) | 108 (6.3) |
Data are presented as n (%), unless otherwise noted. IQR, interquartile range; T1D, type 1 diabetes.