Research Article

Evaluation of Risk Factors Affecting Substance Use among Tenth-Grade Students

Table 8

Distribution of substance use according to substance, tobacco, and alcohol use in family and among friends.

Any substance used to date in life Total
User Nonuser
Number%Number%Number%

Tobacco use in family
 Yes2204.2499495.85214100.02; 22.49 
 No722.3310897.73180100.0
 Total2923.5810296.58394100.0
Alcohol use in family
 Yes10210.091490.01016100.02; 148.15 
 No1902.6718797.47377100.0
 Total2923.5810196.58393100.0
Tobacco use among friends
 Yes2714.6564395.45914100.02; 72.24 
 No210.8245099.22450100.0
 Total2923.5809396.58385100.0
Alcohol use among friends
 Yes2218.0254592.02766100.02; 249.08 
 No711.3554198.75612100.0
 Total2923.5808696.58378100.0
Substance use in family
 Yes5323.916976.1222100.02; 284.61 
 No2372.9792597.18162100.0
 Total2903.5809496.58384100.0
Substance use among friends
 Yes15518.170381.9858100.02; 603.59 
 No1371.8737898.27515100.0
 Total2923.5808196.58373100.0