Table 4 Prevalence of drug use and number of drugs used by gender

n

Prevalence (95% C.I)

n

Prevalence (95% C.I)

n

Prevalence (95% C.I)

 Tobacco

113

84.3 (78.4–90.3)

14

87.5 (68.8–100.0)

99

83.9 (77.1–90.7)

 Alcohol

123

91.8 (87.3–96.3)

14

87.5 (68.8–100.0)

109

92.4 (87.3–97.4)

 Cannabis

86

64.2 (56.0–72.4)

13

81.3 (62.5–100.0)

73

61.9 (53.4–70.3)

 Cocaine

7

5.2 (2.2–9.0)

2

12.5 (0.0–31.3)

5

4.2 (0.8–8.5)

 Amphetamine

4

3.0 (0.7–6.0)

0

0.0 (0.0–0.0)

4

3.4 (0.8–6.8)

 Inhalants

7

5.2 (1.5–9.0)

0

0.0 (0.0–0.0)

7

5.9 (1.7–10.2)

 Sedatives

30

22.4 (15.7–29.1)

4

25.0 (6.3–50.0)

26

22.0 (15.3–30.5)

 Hallucinogen

5

3.7 (0.7–7.4)

1

6.3 (0.0–18.8)

4

3.4 (0.8–6.8)

 Opioids

11

8.2 (3.7–13.4)

5

31.3 (12.5–56.3)

6

5.1 (1.7–9.3)

 Khat

74

55.2 (47.0–64.2)

11

68.8 (43.8–93.8)

63

53.4 (44.9–61.9)

 Tobacco

100

74.6 (67.2–82.1)

13

81.3 (62.5–100.0)

87

73.7 (66.1–81.4)

 Alcohol

110

82.1 (75.4–88.8)

13

81.3 (62.5–100.0)

97

82.2 (74.6–89.0)

 Cannabis

76

56.7 (49.3–64.9)

11

68.8 (43.8–93.6)

65

55.1 (46.6–64.4)

 Cocaine

5

3.7 (0.7–7.5)

0

0.0 (0.0–0.0)

5

4.2 (0.8–8.5)

 Amphetamine

3

2.2 (0.0–5.2)

0

0.0 (0.0–0.0)

3

2.5 (0.0–5.9)

 Inhalants

5

3.7 (0.7–7.4)

0

0.0 (0.0–0.0)

5

4.2 (0.8–7.6)

 Sedatives

19

14.2 (8.2–20.1)

1

6.3 (0.0–18.8)

18

15.3 (9.3–22.0)

 Hallucinogen

3

2.2 (0.0–4.5)

0

0.0 (0.0–0.0)

3

2.5 (0.0–5.9)

 Opioids

6

4.5 (1.5–8.2)

3

18.8 (0.0–37.5)

3

2.5 (0.0–5.9)

 Khat

62

46.3 (38.1–55.2)

9

56.3 (31.3–81.3)

53

44.9 (36.4–53.4)

 1.00

13

9.7 (5.2–14.9)

2

12.5 (0.0–31.3)

11

9.3 (4.2–15.3)

 2.00

31

23.1 (15.7–29.9)

5

31.3 (12.5–56.3)

26

22.0 (14.4–29.7)

 3.00

35

26.1 (18.7–34.3)

0

0.0 (0.0–0.0)

35

29.7 (21.2–38.1)

 4.00

36

26.9 (20.1–34.3)

6

37.5 (12.5–62.5)

30

25.4 (17.8–33.1)

 5 and Above

19

14.2 (9.0–20.1)

3

18.8 (0.0–43.6)

16

13.6 (7.6–19.5)