Evidence map›Paper›PMID 25377274›Full record

ArticleBMC public health2014

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

Anna Hayden, Kanna Hayashi, Huiru Dong, Michael-John Milloy, Thomas Kerr, Julio S G Montaner, Evan Wood

Open access · goldAbstract read
In one paragraph

Article in BMC public health, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
3.2field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 35 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Anna Hayden
Kanna Hayashi
Huiru Dong
Michael-John Milloy
Thomas Kerr
Julio S G Montaner
Evan WoodBritish Columbia Centre for Excellence in HIV/AIDS, St, Paul's Hospital, 608 - 1081 Burrard Street, Vancouver, BC V6Z 1Y6, Canada. uhri-ew@cfenet.ubc.ca.
St. Paul's Hospital · CAUniversity of British Columbia · CA

Funding

SYRINGE ACCESS AND RISK FACTORS ON HIV TRANSMISSIONR01DA011591 · NIDA · UNIVERSITY OF BRITISH COLUMBIA · PI KERR, THOMAS · 1998 to 2014
$5.9M
Impacts of universal access to HIV/AIDS care among HIV+ injection drug usersR01DA021525 · NIDA · UNIVERSITY OF BRITISH COLUMBIA · PI MILLOY, M-J · 2007 to 2016
$5.8M
Seek and Treat for Optimal Prevention of HIV & AIDS (STOP HIV/AIDS) in BCR01DA036307 · NIDA · UNIVERSITY OF BRITISH COLUMBIA · PI MONTANER, JULIO SERGIO GONZALEZ · 2013 to 2017
$3.0M
Canadian Institutes of Health ResearchNIDA NIH HHS R01 DA011591NIDA NIH HHS R01DA011591NIDA NIH HHS R01 DA021525NIDA NIH HHS R01DA021525NIDA NIH HHS R01 DA036307NIDA NIH HHS R01DA036307
6 · The paper itself

Abstract

backgroundIllicit drug use is a well-established risk factor for morbidity and mortality. However, few studies have examined the impact of different drug use patterns on mortality among polysubstance using populations. This study aimed to identify drug-specific patterns of mortality among a cohort of polysubstance using persons who inject drugs (PWIDs).

methodsPWIDs in Vancouver, Canada were prospectively followed between May 1996 and December 2011. Participants were linked to the provincial vital statistics database to ascertain mortality rates and causes of death. We used multivariate Cox proportional hazards regression to investigate the relationships between drug use patterns (daily alcohol use, heroin injection and non-injection use, cocaine injection, amphetamine injection and non-injection use, crack smoking and speedball injecting) and time to all-cause mortality.

results2330 individuals were followed for a median of 61 months (inter-quartile range: 33 - 112). In total, 466 (19.1%) individuals died for an incidence density of 3.1 (95% confidence interval [CI]: 2.8 - 3.4) deaths per 100 person-years. In multivariate analyses, after adjusting for HIV infection and other potential confounders, only daily cocaine injection remained independently associated with all-cause mortality (adjusted hazard ratio [AHR] = 1.36, 95% CI: 1.06 - 1.76).

conclusionsAlthough heroin injecting is traditionally viewed as carrying the highest risk of mortality, in this setting, only daily cocaine injecting was associated with all-cause mortality. These findings highlight the urgent need to identify novel treatments and harm reduction strategies for cocaine injectors.

Indexed as

Risk-TakingAdultBritish ColumbiaCocaine-Related DisordersCohort StudiesFemaleHIV InfectionsHumansIncidenceMalePopulation GroupsProspective StudiesRisk FactorsSubstance Abuse, Intravenous

Identifiers

PMID25377274
PMCPMC4246520
OpenAlexW2001716397

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.