Table 4 Associations between substance use practices and unprotected sex within all partnerships*¹ reported by IDUs and non-IDUs

Male

1.0 (0.7-1.5)

1.0 (0.6-1.5)

1.2 (0.5-2.9)

HIV

1.1 (0.7-1.8)

1.2 (0.7-1.9)

3.0 (0.2-52.0)

Log age

2.1 (0.9-4.8)*

1.5 (0.6-4.1)

6.1 (1.2-30.4)**

6.1 (1.2-30.4)**

Married/partnered

2.5 (1.7-3.7)***

1.9 (1.2-2.9)***

2.7 (1.7-4.2)***

1.9 (1.2-3.1)***

1.8 (0.7-4.9)

Any casual partner

0.5 (0.4-0.7)***

0.5 (0.4-0.7)***

0.5 (0.3-0.7)***

0.5 (0.3-0.7)***

0.6 (0.3-1.1)*

Injection drug use last 6 months

0.9 (0.5-1.4)

-

-

Meth use, injected or not, last 30 days *²

1.7 (1.0-2.8)**

1.8 (1.1-3.2)**

1.7 (1.0-3.0)*

1.9 (1.0-3.5)**

1.6 (0.4-6.5)

Injected > 20 times/month

-

1.0 (0.6-1.5)

-

Unsafe injection last 30 days

-

2.0 (1.2-3.3)***

1.8 (1.0-3.2)**

-

Risky alcohol use*³

1.0 (0.7-1.6)

0.9 (0.6-1.4)

3.0 (0.8-10.8)*

Had sex when high on drugs or alcohol*⁴

2.4 (1.8-3.4)***

2.2 (1.6-3.1)***

3.1 (2.1-4.5)***

2.5 (1.7-3.7)***

1.2 (0.5-2.9)