Table 5

Mean age at smoking initiation by income, education, and age, weighted.

All

(n = 2364)

France

(n = 461)

Ireland

(n = 515)

Italy

(n = 472)

Czech Republic

(n = 427)

Sweden

(n = 489)


Mean age at initiation

n

mean

n

mean

n

mean

n

mean

n

mean

n

mean


by current income

Well below the median

241

19.3

49

18.5

41

20.3

88

18.7

28

20.9

35

19.1

Below the median

591

18.3

114

17.8

144

17.9

143

18.3

92

21.1

98

17.0

Around the median

647

18.1

111

18.4

144

17.6

113

18.3

175

18.9

104

17.0

Above the median

400

17.7

79

18.4

107

17.4

41

18.6

71

18.7

102

16.6

Well above the median

79

17.9

14

20.0

11

19.6

4

22.8

4

17.3

46

16.6

Refused to answer

406

18.1

94

17.3

68

17.8

83

19.3

57

20.2

104

17.0

(ANOVA p-value)

(p = 0.0025)

(p = 0.0945)

(p = 0.0101)

(p = 0.4711)

(p = 0.0077)

(p = 0.0566)


by age at last education

<16

288

18.8

21

20.9

89

17.9

104

19.7

19

21.2

55

17.3

16-19

1052

18.0

165

18.2

278

18.0

175

18.1

228

19.7

206

16.3

20-25

713

18.2

214

18.0

112

17.8

140

18.3

138

19.1

109

17.7

>25

229

18.3

19

17.6

30

18.3

50

18.8

35

20.3

95

17.6

Missing

82

17.3

42

17.2

6

14.3

3

19.4

7

18.9

24

17.5

(ANOVA p-value)

(p = 0.0913)

(p = 0.0162)

(p = 0.9321)

(p = 0.0807)

(p = 0.3701)

(p = 0.0071)


by current age*

18-24

184

30

50

30

37

37

25-34

419

16.4

76

16.9

110

16.4

92

16.3

80

17.2

61

15.2

35-44

380

17.0

61

17.2

102

17.2

74

17.1

52

17.8

91

16.2

45-54

391

17.0

74

16.8

78

17.0

87

17.3

60

17.9

92

16.2

55+

743

17.6

179

17.7

129

17.6

136

17.9

122

18.5

177

16.9

(ANOVA p-value)

(p < 0.0001)

(p = 0.0002)

(p < 0.0001)

(p < 0.0001)

(p < 0.0001)

(p < 0.0001)


*excluding those who initiated after the age of 24 (n = 245)

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

Open Data