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Table 1 Descriptive information on the study individuals ( n= 10)

From: Age-associated DNA methylation changes in immune genes, histone modifiers and chromatin remodeling factors within 5 years after birth in human blood leukocytes

Child number

Date of birth

HLA-DR-DQ haplotype

Risk class a

Mode of delivery

Maternal smoking during pregnancy

Age at end of exclusive breast-feeding (months)

Age at end of total breast-feeding (months)

Samples (time points) included in the analysis after QC

1

2000.03.21

DRB1*04:01-DQB1*03:02/DRB1*04:04-DQB1*03:02

3

Caesarean section

No

-

<3

3 m, 12 m, 24 m, 36 m, 48 m, 60 m

2

2000.04.10

DRB1*04:04-DQB1*03:02/(DR1/10)-DQB1*05:01

3

Caesarean section

No

2.2

3.5

24 m, 60 m

3

2002.04.18

DRB1*04:04-DQB1*03:02/(DR1/10)-DQB1*05:01

3

Vaginal

No

<5

7 to 11

3 m, 6 m, 12 m, 24 m, 48 m, 60 m

4

2002.05.16

DRB1*04:04-DQB1*03:02/(DR7)-DQA1*02:01-DQB1*03:03

1

Vaginal

Yes

0.2

10.5

3 m, 6 m, 12 m, 24 m, 48 m, 60 m

5

2002.08.04

DRB1*04:01-DQB1*03:02/DRB1*04:04-DQB1*03:02

3

Vaginal

No

5.0

10.0

3 m, 6 m, 12 m, 24 m, 36 m, 48 m, 60 m

6

2002.08.21

DRB1*04:04-DQB1*03:02/(DR9)-DQA1:03-DQB1*03:03

3

Vaginal

No

<3

13 to 17

3 m, 12 m, 24 m, 48 m, 60 m

7

2002.10.04

DRB1*04:01-DQB1*03:02/ (DR8)-DQB1*04

3

Vaginal

No

3.0

8.0

3 m, 6 m, 12 m, 24 m, 36 m, 48 m, 60 m

8

2002.10.29

DRB1*04:01-DQB1*03:02/(DR1/10)-DQB1*05:01

3

Caesarean section

No

<3

8 to 11

3 m, 6 m, 12 m, 24 m, 36 m, 48 m, 60 m

9

2002.11.20

DRB1*04:03-DQB1*03:02/(DR13)-DQB1*06:03

0

Vaginal

No

5.5

9.0

3 m, 6 m, 12 m, 24 m, 36 m, 48 m, 60 m

10

2002.11.21

DRB1*04:04-DQB1*03:02/(DR1/10)-DQB1*05:01

3

Vaginal

No

2.0

2.7

3 m, 6 m, 12 m, 24 m, 36 m, 48 m, 60 m

  1. aRisk for T1D classified in five classes from decreased risk (0) to strongly increased risk (4) as presented in Hekkala et al [50].
  2. HLA = human leukocyte antigen; m = months.