Table 4 Univariate and multivariate Cox proportional hazard analyses of hospitalizations for a cutaneous injection-related infection or related infectious complication among among Scientific Evaluation of Supervised Injection participants.

Age

   (per year older)

0.98

(0.96 - 1.01)

0.146

Sex

   (Female vs Male)

1.59

(1.07 - 2.39)

0.024

1.36

(0.90 - 2.05)

0.139

Unstable housing*

   (Yes vs No)

1.65

(1.08 - 2.53)

0.021

1.26

(0.79 - 2.02)

0.328

Cocaine injection*

   (Daily vs Not daily)

1.75

(1.17 - 2.62)

0.006

1.46

(0.94 - 2.25)

0.090

Speedball injection*

   (Daily vs Not daily)

1.90

(1.15 - 3.14)

0.012

1.19

(0.69 - 2.07)

0.528

HIV serostatus

   (Positive vs Negative)

2.12

(1.39 - 3.24)

<0.001

1.79

(1.16 - 2.75)

0.008

Hospital referral†

   (Yes vs No)

2.41

(1.55 - 3.77)

<0.001

5.38

(3.39 - 8.55)

<0.001