Table 2

Sample characteristics by smoking status

Smoking status

No

Yes


n

%

n

%

P χ2 test


Age (years)

12-15

670

96.30

26

3.70

<0.001

16-18

255

76.30

79

23.70

Gender

Girls

557

89.00

69

11.00

0.274

Boys

368

91.10

36

8.90

Family socioeconomic status

Low

317

84.30

59

15.70

<0.001

Medium

436

92.80

34

7.20

High

172

93.50

12

6.50

Mother smoker

No

580

92.50

47

7.50

<0.001

Yes

345

85.60

58

14.40

Father smoker

No

447

93.10

33

6.90

0.001

Yes

478

86.90

72

13.10

Exposure to family members' smoking

No

601

91.90

53

8.10

0.003

Yes

324

86.20

52

13.80

Leisure time, mean (SD)

58.60(23.40)

57.70(23.60)

0.720*


*Student's t-test

Giannakopoulos et al. BMC Public Health 2010 10:57   doi:10.1186/1471-2458-10-57

Open Data