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Table 2 Substance abuse (smoking, alcohol, ephedrine, speed and ecstasy) among male and female adolescents (F – frequency, % - percentage), Kruskal Wallis ANOVA and T-test between sexes (H – H value; t – t value; p – level of significance)

From: Substance abuse prevalence and its relation to scholastic achievement and sport factors: an analysis among adolescents of the Herzegovina–Neretva Canton in Bosnia and Herzegovina

  BOYS GIRLS Kruskal Wallis (T Test)
F % F % H (t) p
Smoking…       
I have never smoked (1) 167 38.39 324 54.27   
Quit smoking (2) 15 3.45 30 5.03   
Occasionally, from time to time, but not daily (3) 92 21.15 139 23.28   
Less than 10 cigarettes per day (4) 106 24.37 72 12.06   
10-20 cigarettes per day (5) 46 10.57 22 3.69   
More than a pack per day (6)       
Missing 9 2.07 10 1.68 44.69 0.001
Alcohol drinking (AUDIT) *       
Non-harmful drinking 224 - 482    
Harmful drinking 204 - 105    
Missing 7 1.61 10 1.67 12.04 0.001
Ephedrine       
Never (1) 415 95.40 581 97.32   
Ever tried (2) 2 0.46     
Once or twice (3) 1 0.23 1 0.17   
3-5 time (4) 2 0.46     
6-9 times (5)       
10-19 times (6) 1 0.23     
Missing 14 3.22 15 2.51 5.53 0.020
Cocaine       
Never (1) 406 93.33 580 97.15   
Ever tried (2) 5 1.15 - -   
Once or twice (3) 3 0.69 1 0.17   
3-5 times (4) 1 0.23 - -   
6-9 times (5) 2 0.46 - -   
10-19 times (6) 5 1.15 - -   
Missing 13 2.99 16 2.68 19.21 0.001
Speed and Ecstasy       
Never (1) 404 92.87 578 96.82   
Ever tried (2) 6 1.38 2 0.34   
Once or twice (3) 4 0.92 1 0.17   
3-5 times (4) 2 0.46 - -   
6-9 times (5) 3 0.69 - -   
20-39 times (6) - - - -   
40 and more (7) 3 0.69 - -   
Missing 13 2.99 16 2.68 16.84 0.001
  1. LEGEND: * Differences between genders for AUDIT were calculated by t-test; number in parentheses presents ordinal value for each variable.