Table 1: Study population.

Study groupNo. of individualsAge (years)
median, range
Age
(years)
Sex
(F/M)

T1D recent onset1212; 3–4112
12
3
17
12
8
7
41
19
15
7
7
M
M
F
M
F
F
M
M
M
F
F
F

First-degree relatives
autoantibodies negative
919; 5–525
7
32
52
43
19
22
16
8
F
F
F
M
F
F
M
M
F

First-degree relatives
autoantibodies positive
97; 3–217
13
10
7
3
7
7
21
7
F
F
M
F
M
F
F
F
F

Controls1327; 14–4214
36
22
22
21
21
27
31
27
42
27
32
24
M
F
F
F
F
M
F
M
M
M
F
F
M