Table 2 Substance use among sexually experienced alcohol- and tobacco-using young adults in Taipei metropolitan area recruited using RDS during 2007–2010, by gender and sexual initiation (N = 916)

Males

Regular binge drinking^b

115

(15.9–26.3)

31

(21.0–49.2)

 Any illicit drug

132

(21.3–36.2)

46

(38.2–71.0)

 Ketamine

70

(8.6–16.9)

34

(27.5–58.7)

 Ecstasy

68

(9.1–18.2)

22

(13.4–40.6)

 Cannabis

74

(7.8–16.5)

23

(16.2–43.9)

 FM2/angel dust/GHB

14

(0.3–4.7)

11

(3.9–22.4)

 Methamphetamine

39

(3.4–10.1)

20

(12.0–38.8)

 Heroin

20

(0.7–6.4)

12

(1.7–19.4)

  Hard drug use^c

41

(3.7–11.1)

22

(13.0–40.7)

  Exclusively club drug use^d

75

(10.5–20.2)

21

(13.3–39.2)

Illicit drug use right before sex

42

(3.4–10.1)

21

(15.1–43.2)

Females

Regular binge drinking^b

46

(6.4–16.4)

8

(0.7–38.4)

 Any illicit drug

70

(12.6–26.6)

13

(15.2–65.0)

 Ketamine

41

(6.9–17.7)

11

(15.0–67.0)

 Ecstasy

39

(7.1–18.8)

7

(2.3–33.4)

 Cannabis

45

(7.2–18.3)

3

(0.0–21.0)

 FM2/angel dust/GHB

4

(0.0–3.0)

0

–

 Methamphetamine

13

(1.8–11.1)

2

(0.0–16.0)

 Heroin

8

(0.1–8.5)

0

–

  Hard drug use^c

15

(1.6–13.2)

2

(0.0–16.3)

  Exclusively club drug use^d

30

(3.0–8.8)

6

(1.4–46.7)

Illicit drug use right before sex

34

(6.5–18.1)

5

(1.5–30.7)