Table 2 Variables associated with current smoking (Bi-variate analysis)

Age (years)

   11–12

1.00

1.00

1.00

   13

0.30 [0.22, 0.41]

0.56 [0.35, 0.89]

0.20 [0.11, 0.35]

   14

0.50 [0.31, 0.79]

0.63 [0.40, 0.97]

0.47 [0.36, 0.63]

   15

1.05 [0.81, 1.38]

1.65 [1.09, 2.51]

1.04 [0.66, 1.64]

   16–17

5.27 [2.96, 9.39]

7.21 [4.42, 11.76

4.89 [3.48, 6.86]

Gender

   Females

1.00

   Males

1.26 [1.05, 1.50]

Education father/stepfather

   Elementary school or less

1.00

1.00

1.00

   Middle school

0.81 [0.56, 1.17]

0.76 [0.58, 1.00]

0.85 [0.55, 1.33]

   High school

0.53 [0.40, 0.69]

0.47 [0.33, 0.68]

0.60 [0.41, 0.90]

   University

0.52 [0.42, 0.69]

0.54 [0.39, 0.75]

0.49 [0.32, 0.77]

Education mother/stepmother

   Elementary school or less

1.00

1.00

1.00

   Middle school

1.00 [0.74, 1.34]

0.95 [0.62, 1.46]

0.71 [0.47, 1.08]

   High school

0.54 [0.41, 0.71]

0.48 [0.32, 0.71]

0.61 [0.41, 0.93]

   University

0.53 [0.41, 0.71]

0.55 [0.38, 0.81]

0.61 [0.42, 0.89]

Parental smoking

   None

1.00

1.00

1.00

   Father only

1.57 [1.22, 2.02]

1.87 [1.34, 2.61]

1.27 [0.82, 1.97]

   Mother only

1.38 [1.00, 1.89]

1.11 [0.69, 1.81]

1.67 [1.07, 2.60]

   Both parents

2.48 [1.99, 3.09]

2.72 [1.98, 3.74]

2.13 [1.54, 2.96]

Perception cigarettes smoking harmful

   Definitely not or probably not

1.00

1.00

1.00

   Definitely yes or probably yes

1.20 [0.92, 1.56]

1.13 [0.88, 1.45]

1.23 [1.04, 1.47]

Pocket money

   < 7 Euro

1.00

1.00

1.00

   8–15 Euro

2.29 [1.53, 3.41]

2.06 [1.23, 3.45]

3.14 [1.50, 6.60]

   16–23 Euro

3.39 [2.34, 4.91]

3.31 [2.03, 5.39]

4.91 [2.47, 9.75]

   24–31 Euro

4.15 [2.78, 6.20]

4.03 [2.37, 6.85]

6.04 [2.92, 12.47]

   >=32 Euro

7.26 [4.73, 11.14]

6.78 [3.86, 11.91]

10.96 [5.09, 23.58]