Table 1 Characteristics of subjects included in the study

Belgium

15 (6/9)

11.6 ± 1.5

− 0.26 ± 0.04

7 (3/4)

11.8 ± 2.1

1.44 ± 0.42

Cyprus

6 (2/4)

11.3 ± 1.6

− 0.15 ± 0.63

6 (2/4)

11.9 ± 1.3

1.96 ± 0.68

Estonia

17 (9/8)

13.0 ± 1.5

− 0.03 ± 0.48

14 (8/6)

13.2 ± 1.5

1.67 ± 0.48

Germany

10 (2/8)

12.1 ± 1.5

− 0.12 ± 0.56

16 (6/10)

13 ± 1.5

1.74 ± .60

Hungary

13 (8/5)

11.9 ± 2.0

0.06 ± 0.54

12 (4/8)

12.0 ± 2.3

1.96 ± 0.62

Italy

10 (2/8)

12.1 ± 1.3

0.18 ± 0.40

12 (9/3)

12.2 ± 1.4

1.97 ± 0.77

Spain

13 (9/4)

12.0 ± 2.3

0.08 ± 0.49

14 (4/10)

11.8 ± 1.9

1.66 ± 0.71

Sweden

11 (7/4)

11.4 ± 1.4

− 0.09 ± 0.54

13 (5/8)

11.2 ± 2.1

1.65 ± 0.47

All

95 (45/50)

12.0 ± 1.6

− 0.04 ± 0.50

94 (41/53)

12.3 ± 1.8

1.75 ± 0.61