Table 4

Distribution of age at smoking initiation by country, weighted.

All

France

Ireland

Italy

Czech Republic

Sweden

(n = 2364)

(n = 461)

(n = 515)

(n = 472)

(n = 427)

(n = 489)


Mean age at initiation

18.2

18.1

17.9

18.6

19.6

17.1

(ANOVA p-value < 0.01)


Range and quartile distribution of age at initiation

Maximum

60

50

50

55

60

45

75% quartile

20

19

20

20

20

18

Median

17

17

17

18

18

16

25% quartile

15

16

15

15

16

14

Minimum

10

11

10

12

10

11


Age at initiation

<14

6.8%

3.2%

9.0%

6.0%

1.4%

12.0%

14-15

20.7%

18.1%

20.2%

19.7%

13.7%

29.3%

16-17

24.7%

29.6%

23.2%

22.6%

25.9%

23.4%

18-19

20.4%

24.7%

21.5%

20.6%

20.6%

15.6%

20-21

13.3%

12.7%

13.0%

14.3%

18.2%

9.6%

22-23

4.0%

3.4%

3.7%

5.1%

3.9%

3.7%

24-25

3.7%

2.6%

4.6%

4.0%

4.8%

2.6%

26-27

1.0%

0.8%

0.7%

1.1%

1.9%

0.9%

28-29

0.8%

0.7%

1.0%

0.4%

0.9%

1.0%

30+

4.6%

4.2%

3.1%

6.2%

8.7%

2.0%


Oh et al. BMC Public Health 2010 10:74   doi:10.1186/1471-2458-10-74

Open Data