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Table 2 Frequency (%) of current drug use among 10th grade high school students based on school type (n = 609)a

From: “Students in public and private schools—which are at higher risk of drug use?”: a survey from Iran

Drug

Total

Public

Private

Pearson’ s Chi-Square

P-value

Cigarette

5.5%

4.4%

12.2%

7.83

0.02

Waterpipe

19.3%

19.9%

15.7%

0.80

0.39

Alcohol

11.4%

11.8%

8.8%

0.30

0.59

Opium

0.8%

0.8%

0.7%

0.01

0.94

Naas

0.3%

0.4%

0.0%

0.12

0.73

Marijuana

0.9%

0.5%

3.0%

3.68

0.04

Methamphetamine

0.3%

0.2%

0.7%

1.27

0.28

  1. a Percentages were adjusted for school cluster sampling