Table 2 Background characteristics at baseline for infants randomized to BCG or no intervention in the assessment of T and B cell subsets.

Age at randomization^a

0–1 days

32(57%)

41(66%)

0.32

2–7 days

24(43%)

21(34%)

Male sex^a

29 (52%)

32 (52%)

0.99

Gestational age (weeks)^b

40 (38–41)

40 (38–41)

0.85

Weight (kg)^b

3.5 (3.0–4.0)

3.5 (2.8–4.0)

0.21

Caesarean section^a

7 (13%)

15 (24%)

0.10

Maternal BCG^a

13 (24%)

9 (15%)

0.21

Parental etnicity different from Danish^a

8 (14%)

11 (18%) [1]

0.58

Maternal smoking during pregnancy^a

3(5%)

5 (8%) [1]

0.56

Level of maternal education^a

[1]

0.56

Basic schooling and non-theoretical education

10 (18%)

14(23%)

Theoretical education incl BA level

28 (51%)

25(41%)

Master level or more

17 (31%)

22 (36%)

Siblings^a

19 (34%)

21 (34%)

0.99

Atopic predisposition^C

39 (70%)

39(63%)

0.44

Lymphocytes (10^9/L) 4 days

5.5

5.3

0.43

Lymphocytes (10^9/L) 3 months

5.6

5.8

0.51

Lymphocytes (10^9/L) 13 months

5.7

6.0

0.40

Lost to follow-up^a

2(4%)

10(16%)

0.04