Early sexual initiation and risky sexual practices among alcohol- and tobacco-using young adults in Taiwan: mediation analysis of preceding-sex use of illicit drugs

Table 3 Sexual history among alcohol- and tobacco-using young adults in Taipei metropolitan area recruited using RDS during 2007–2010, by gender and sexual initiation (N = 916)

	Nonearly sexual initiation			Early sexual initiation
Variable	N	%_wt	95% CI	N	%_wt	95% CI	p^a
Males	N = 499			N = 79
No. of sexual partners							.056
1–3	249	47.4	(40.2–53.4)	24	29.4	(15.5–42.9)
4–7	120	26.7	(21.2–33.3)	21	31.6	(17.6–47.6)
≥ 8	130	25.9	(20.4–32.3)	34	39.0	(24.8–54.8)
Casual sex	206	44.7	(38.1–51.1)	42	53.4	(39.0–69.7)	.267
Group sex	42	7.0	(4.1–10.6)	16	20.9	(10.1–33.6)	.001**
Rare condom use^b	92	20.6	(15.1–25.8)	21	27.9	(15.3–41.9)	.285
Homosexual/bisexual experience	47	5.4	(2.8–9.1)	12	11.5	(2.0–27.1)	.097
Females	N = 308			N = 30
No. of sexual partners							.001**
1–3	190	65.4	(55.3–71.7)	8	25.8	(5.2–51.9)
4–7	97	30.0	(24.0–39.5)	13	54.2	(27.0–80.0)
≥ 8	21	4.6	(2.3–7.9)	9	20.0	(3.9–39.1)
Casual sex	69	18.7	(13.5–26.0)	17	72.0	(48.8–90.3)	<.001***
Group sex	13	2.9	(1.3–5.2)	4	16.6	(1.0–38.9)	.004**
Rare condom use^b	92	34.6	(24.3–42.5)	13	64.2	(38.7–83.9)	.015*
Homosexual/bisexual experience	33	8.0	(4.1–12.5)	1	5.1	(0.0–15.8)	.672

^a Using weighted chi-square tests, with weight exported from RDSAT; *p < 0.05, ** p < 0.01,*** p < 0.001
^b Including use frequency of “seldom” and “never”

ISSN: 1471-2458