Table 5 Factors associated with testing for only HIV or HCV using multilevel model (N=11254)

Null model

Random

Level 2

${\sigma }_{{\mu }_{\mathbf{O}}}^2$

2.913(0.629)

<0.001

Model with explanatory variables

Random

Level 2

${\sigma }_{{\mu }_{\mathbf{O}}}^2$

2.866(0.619)

<0.001

Fixed

Age

<30 years old

10.7

-

1

30-39 years old

10.9

0.166(0.089)

1.18(0.99, 1.41)

0.0617

40-49 years old

10.0

0.424(0.122)

1.53(1.20, 1.94)

<0.001

>50 years old

12.0

0.027(0.283)

1.03(0.59, 1.79)

0.924

Sex

Male

10.9

-

1

Female

8.2

0.448(0.161)

1.57(1.14, 2.15)

0.005

Ever injected drugs

Yes

11.0

-

1

<0.001

No

9.5

0.349(0.104)

1.42(1.16, 1.74)