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Table 2 Univariate and multivariate Cox proportional hazard regression analyses of the time to all-cause death among people who inject drugs in Vancouver, Canada (n = 2330)

From: The impact of drug use patterns on mortality among polysubstance users in a Canadian setting: a prospective cohort study

 

Unadjusted hazard ratio (HR)

Adjusted†hazard ratio (AHR)

Variable

HR

(95% CI)

p -value

AHR

(95% CI)

p -value

Daily alcohol use*

0.98

0.77 – 1.25

0.854

1.00

0.78 – 1.28

0.979

Daily heroin injection*

0.75

0.60 – 0.95

0.018

0.92

0.71 – 1.19

0.502

Daily heroin (non-injection)*

1.12

0.51 – 2.44

0.779

1.44

0.68 – 3.07

0.340

Daily cocaine injection*

1.41

1.12 – 1.78

0.003

1.36

1.06 – 1.76

0.017

Daily amphetamine injection*

0.39

0.10 – 1.54

0.177

0.41

0.10 – 1.72

0.224

Daily amphetamine (non-injection)*

1.13

0.29 – 4.50

0.859

0.94

0.13 – 6.88

0.949

Daily crack cocaine smoking*

0.91

0.74 – 1.12

0.358

0.83

0.67 – 1.04

0.099

Daily speedball injectionn

1.02

0.69 – 1.52

0.917

0.98

0.62 – 1.56

0.944

  1. *Refers to activities in the six months prior to interview. †Model was adjusted for HIV serostatus, age, and unstable housing.
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BMC Public Health

ISSN: 1471-2458

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