Table 2

Proportion reporting a sexually transmitted infection (STI) in past 12 months and association with selected behaviours in the past 6 months and known HIV status (N=3138) (missing values for each variable not shown)

	N	Any STI	Unadjusted OR (95% CI)	Adjusted OR (95% CI)
	N	n (%)	Unadjusted OR (95% CI)	Adjusted OR (95% CI)
Male partners				*
0	230	10 (4.3)	0.94 (0.45 to 2.0)	1.7 (0.71 to 4.3)
1	627	29 (4.6)	Ref.	Ref.
2–5	1177	76 (6.5)	1.4 (0.92 to 2.2)	1.2 (0.77 to 2.0)
6–10	456	54 (11.8)	2.8 (1.7 to 4.4)	2.4 (1.5 to 4.0)
11–20	293	29 (9.9)	2.3 (1.3 to 3.9)	2.0 (1.1 to 3.4)
21–50	195	36 (18.5)	4.7 (2.7 to 8.0)	4.0 (2.3 to 6.8)
>50	65	15 (23.1)	6.2 (3.1 to 12.5)	5.4 (2.7 to 10.9)
Male partners				†
None	240	10 (4.2)	0.76 (0.36 to 1.6)	0.85 (0.002 to 356)
Only regular	445	24 (5.4)	Ref.	Ref.
Regular and casual	1833	188 (10.3)	2.0 (1.3 to 3.1)	0.93 (0.46 to 1.9)
Only casual	538	28 (5.2)	0.96 (0.55 to 1.7)	0.58 (0.26 to 1.3)
Any anal sex				‡
Yes	2291	218 (9.5)	2.7 (1.7 to 4.2)	2.3 (1.3 to 4.0)
No	639	24 (3.8)	Ref.	Ref.
Regular partners and condom use				‡
No anal sex	186	8 (4)	0.51 (0.59 to 1.2)	0.98 (0.67 to 1.4)
High condom use	554	45 (8)	Ref.	Ref.
Medium/low condom use	696	88 (13)	1.6 (1.1 to 2.4)	1.8 (1.3 to 2.7)
No regular partner/NS	1702	116
Casual partners and condom use				‡
No anal sex	437	17 (3.9)	0.59 (0.41 to 0.86)	0.54 (0.32 to 0.92)
High condom use	1396	122 (8.7)	Ref.	Ref.
Medium/low condom use	481	71 (15)	1.8 (1.3 to 2.5)	1.7 (1.2 to 2.3)
No casual partner/NS	824	47
HIV status at last HIV test				†
HIV positive	130	19 (15)	1.6 (0.95 to 2.6)	1.3 (0.74 to 2.2)
HIV negative	2096	205 (10)	Ref.	Ref.
Never tested/no result	869	27 (3)	0.30 (0.20 to 0.45)	0.37 (0.24 to 0.56)

*Adjusted for anal sex.
†Adjusted for number of partners and anal sex.
‡Adjusted for number of partners.