Father

Mother

Grandfather

Grandmother

Older sister

Older brother

Younger sister

Younger brother

Friend

Girl/boyfriend

Other

No-one

Smokers (%)

40.9

6.8

9.1

2.3

2.3

20.5

2.3

13.6

75.0

0

2.3

2.4

Nonsmokers (%)

31.8

4.9

6.5

1.2

3.3

9.4

0.4

4.1

50.6

3.3

2.4

24.1