Table 3 Odds ratio and 95% confidence interval for cigarette smoking, snuff /pipe use by knowledge of tobacco products and advertisement of tobacco products for Ellisras rural children aged 11 to 18 years

Knowledge of tobacco products

Smoking has no effect on one’s health

1.9(1.1-3.1)

1.9(1.1-3.2)

-

-

Smoking is bad for women who are pregnant

1.6(1.0-2.6)

0.7(0.4-1.1)

0.4(0.3-0.7)

0.4(0.3-0.7)

Smoking near you is harmful to your health

()

0.5(0.3-0.9)

0.6(0.3-0.9)

0.5(0.3-0.9)

Chewing tobacco is much healthier than smoking cigarettes

-

-

4.5(2.7-7.4)

4.5(2.7-7.4)

There is no difference between chewing tobacco smoking cigarettes they are all bad

-

-

-

0.5(0.3-0.9)

Snuff is good for women who are stressed.

-

-

-

0.5(0.3-0.8)

It doesn’t help giving up smoking when you are old, since the damage has been done

-

-

-

1.7(1.0-2.9)

Advertisement of tobacco products

1. When you watch TV, Video or movies, how often do you see actors smoking or chewing tobacco? A lot

1.7(1.1-2.7)

1.6(1.0-2.6)

-

-

2. Have you ever been given free cigarettes by anybody other than your parents, friends or relatives? Yes

-

4.0(2.4-6.7)

-

3.8(2.2-6.7)

3. Do you have something (t-shirt, pen, backpack) with a cigarette brand or any tobacco brand logo on it? Yes

-

2.5(1.1-5.7)

4. During the past 30 days how many advertisement for cigarette or other tobacco products have you seen on the billboards? A lot

3.4(2.1-5.6)

-

2.5(1.4-4.5)

5. During the past 30 days how many advertisements or promotions for cigarettes or other tobacco products have you seen in a classroom? A lot

2.0(1.1-3.6)

-

2.4(1.2-4.5)

6. During the past 30 days how many advertisements or promotions for cigarettes or other tobacco products have you seen at home? None

0.3(0.2-0.5)

0.4(0.2-0.6)

-