Table 1 Socio-demographic characteristics of study participants

Africa

 Eritrea

3 /3

27–51

6–12

 Democratic Republic of Congo

1/1

28–40

6–8

 Kenya

0/1

29-

10

 Sudan

2/0

27–52

3–15

 Somalia

0/3

21–29

0–5

Asia

 Afghanistan

2/1

28–34

4–5

 Irak

0/1

42-

10

 Syria

1/0

29-

12

 Mongolia

0/1

25-

10

 Kyrgystan

1/0

41-

10

 Palestina

1/0

38-

8

 Pakistan

0/1

29-

12

Europe

 Russia

1/ 1

27–36

10

 Albania

1/0

38

8

 All participants

13/13

21–52

0–15