Table 1 Characteristics of TEDDY children with islet autoimmunity and control children.

From: Children’s erythrocyte fatty acids are associated with the risk of islet autoimmunity

 

Case children

Total n = 398

Control children

Total n = 1178

Clinical center, n (%)

Colorado

56 (14.1)

162 (13.8)

Georgia

27 (6.8)

78 (6.6)

Washington

36 (9.1)

107 (9.1)

Finland

113 (28.4)

339 (28.8)

Germany

35 (8.8)

105 (8.9)

Sweden

131 (32.9)

387 (32.9)

Sex, n (%)

Female

178 (44.7)

530 (45.0)

Male

220 (55.3)

648 (55.0)

Status regarding first degree relative

First degree relative with type 1 diabetes

88 (22.1)

259 (22.0)

General population

310 (77.9)

917 (78.0)

HLA genotype, n (%)

High risk (DR3/4)

210 (52.8)

420 (35.7)

Moderate risk (other genotypes)

187 (47.0)

747 (63.4)

Missing

1 (0.2)

11 (0.9)

Ancestry, mean (SD)

Principal component 1

0.0017 (0.0074)

0.0013 (0.0078)

Principal component 2

− 0.0003 (0.0109)

− 0.0016 (0.0094)

Breastfed, n (%)

At 3 months

307 (77.1)

903 (76.7)

At 6 months

252 (63.3)

778 (66.0)

Missing information

1 (0.3)

4 (0.3)

Weight z score, mean (SD)

At 3 months

0.68 (0.95)

0.41 (1.03)

At 6 months

0.47 (1.00)

0.24 (1.01)

Over 1–6 years

0.20 (1.04)

0.01 (0.99)